Keto Vanilla Birthday Cake


5 from 1311 votes
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This easy keto birthday cake is a low carb twist on the classic vanilla birthday cake! Made with almond flour and coconut flour, this moist and fluffy cake is the BEST low carb birthday cake recipe! 2 grams net carbs per LARGE slice.

keto vanilla cake

Keto Vanilla Cake

When it comes to birthdays, we have a few keto birthday desserts on rotation. Our favorites are keto brownies, keto chocolate cheesecake and now, this easy keto birthday cake.

I’ve been meaning to make a keto friendly birthday cake for ages now. I keep putting it off, but with my birthday fast approaching, I wanted to do something special and have my cake, and making it keto too.

Growing up, my birthday cake was ALWAYS a vanilla cake or a white cake. I never really chose those fancy flavors and loved the simplicity of it. To keep the tradition alive, my keto cake HAD to be simple yellow vanilla cake.

Now, this keto cake may look incredibly fancy, but I promise you, it is SO easy to make.

No grains, no sugar, and no dairy whatsoever, but you’d never tell. I served this with all my non-keto friends and NO one knew it was low carb and sugar free. In fact, several of them have requested it for THEIR birthdays!

The texture of this birthday cake is JUST like any vanilla cake out there- moist and fluffy, with a tender crumb. The taste is gorgeous- sweet with notes of vanilla throughout.

Ingredients for a Birthday Keto Cake

Here is what you will need for this easy keto birthday cake. Please avoid substituting any of the ingredients, unless specifically stated. For such a fancy looking birthday cake, you’ll love this simple and easy ingredient list.

Keto Birthday Cake Ingredients

  • Almond Flour– You must use blanched almond flour, otherwise the cake will be darker and denser. Blanched almond flour is often called superfine almond flour.
  • Coconut Flour– Works with the almond flour to produce a super fluffy and moist cake. DO NOT omit this or substitute this for something else.
  • Baking Powder– Leavens out the cake and helps it rise.
  • Salt– Brings out the sweetness of the cake.
  • Butter– I used vegan butter, to keep it dairy free. If you use vegan butter, try to use the stick variety (not spreadable) as it doesn’t have any added water or fillers on it.
  • Sugar Substitute– You can use either monk fruit sweetener or erythritol. I prefer using monk fruit as it is most similar to white sugar.
  • Eggs– Use room temperature eggs, not refrigerated.
  • Milk of choice– Almond milk, coconut milk, cashew milk, etc. All will work.
  • Vanilla extract– A MUST for any cake or baked food recipe.

How to make a keto birthday cake

This ingredient amounts provided for this low carb birthday cake recipe is to make a layer cake. If you’d like to make a single cake, simply halve the ingredients!

Start by greasing two 8-inch cake pans and set aside. Next, combine your dry ingredients into a large mixing bowl and mix until combined.

In a separate bowl or in a stand mixer, add your sugar substitute with butter. Beat together the two ingredients until creamy and fluffy. This usually takes around 8 minutes. Continue mixing while adding the eggs in, one at a time. Next, add the milk and vanilla extract and beat it into the batter. Finally, add in the dry mixture and beat all together until creamy.

Finally, you’ll transfer the keto vanilla cake batter evenly amongst the two cake pans. Bake the cakes for 22-25 minutes, or until a skewer comes out clean. Allow the cakes to cool completely, before frosting them and layering them up.


Frosting Ideas

Any vanilla or white frosting will work, or you can even go the chocolate route. Here are a few other ideas-

  • Cream cheese frosting– Use any cream cheese frosting of your choice. Be sure to use dairy free cream cheese to keep it vegan!
  • Cashew cream cheese frosting– My go-to frosting. It’s a little more time consuming but it’s so creamy, thick and rich!
  • Whipped coconut cream– Simple and delicious!

Keto Vanilla Cake Tips

  • Again, this makes a keto layer birthday cake. For a single cake, halve the ingredients.
  • I highly recommend using a stand mixer or hand mixer to beat the ingredients. I tried mixing by hand and while it does work, I find the former have the fluffier texture.
  • For a keto Funfetti birthday cake, add some sugar free sprinkles into the batter and on the frosting.
  • Your cake must be cooled completely before frosting.
  • Do not overbake the cake, as the cake continues to bake while it cools.

low carb birthday cake

Is this a diabetic cake?

Please understand that I am not a medical professional. While I am knowledgable about diabetes and the diabetic way of eating (my father is diabetic), every person’s carbohydrate and sugar needs are different.

To see if this cake is suitable for a diabetic diet and can be considered a diabetic cake, please seek appropriate advice.

Can I make this without eggs?

I tried this keto vanilla birthday cake without eggs, using an egg substitute. The texture was not super moist or fluffy, and quite dense. If you don’t mind that texture, then use a pre-formulated egg substitute (e.g. ener-g egg replacer).

I haven’t tried this with flax eggs or chia eggs, so please let me know if you try it out- I’d love to hear how it works!

Storing and Freezing Tips

  • To store: Leftover sugar free birthday cake should be stored in the refrigerator, to avoid any potential spoilage. Keep the cake covered in a sealable container. It will keep well for at least 5 days.
  • To freeze: If you don’t plan on eating the keto birthday cake within 5 days, freeze the leftovers! Place slices of the cake in a freezer friendly container, or in large portions. Birthday keto cake will keep well frozen for up to 6 months.

easy keto birthday cake recipe

More Keto Friendly Desserts

keto birthday cake

Keto Birthday Cake (Vanilla Cake!)

5 from 1311 votes
This keto birthday cake recipe is the BEST sugar free birthday cake you'll ever have! Moist, fluffy and with a tender crumb, this keto vanilla cake is just like a classic yellow cake! Sugar free, gluten free, paleo and low carb.
Servings: 16 Slices
Prep: 10 minutes
Cook: 25 minutes



  • Preheat the oven to 180C/350F. Line two 8-inch pans with parchment/baking paper and set aside.
  • In a mixing bowl, add your almond flour, coconut flour, baking powder and salt and mix well. Set aside.
  • In a stand mixer or hand mixer, cream your butter and sugar until fluffy, around 8 minutes. Add the eggs in, one at a time, and beat well until fully incorporated. Add the milk and vanilla extract until combined. Add the dry ingredients and beat until creamy.
  • Divide the batter evenly amongst the two cake pans, and smoothen out the tops. Bake for around 22-25 minutes, or until a skewer comes out clean. Allow the cakes to cool completely.
  • Once cool, frost the cakes with your favorite vanilla frosting.


* Erythritol or monk fruit sweetener.
** I haven't tried using flax eggs or chia eggs. I tried this with egg replacer, and the texture was too dense. 


Serving: 1sliceCalories: 172kcalCarbohydrates: 5gProtein: 4gFat: 16gSodium: 209mgPotassium: 20mgFiber: 3gVitamin A: 333IUCalcium: 75mgIron: 1mgNET CARBS: 2g
Course: Dessert
Cuisine: American
Author: Arman Liew
Tried this recipe?Give us a shout at @thebigmansworld or tag #thebigmansworld!

Arman Liew

I’m a two time cookbook author, photographer, and writer, and passionate about creating easy and healthier recipes. I believe you don’t need to be experienced in the kitchen to make good food using simple ingredients that most importantly, taste delicious.

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Recipe Rating


  1. 5 stars
    I followed the directions very carefully and was pleased with the outcome. The cake is moist and sweet (almost too sweet) I used Besti sugar replacement; with a hint of vanilla. Great Cake will make it again.

  2. 5 stars
    My brother has been eating a Keto diet for some time but I wanted to make a cake for his 60th birthday. This cake is super easy and extremely delicious! I put fresh blueberries in the filling and on the top. Together with the cream cheese icing it was soooo good. He actually had several slices that day!! Awesome recipe!

  3. 5 stars
    Beautiful. I made 2. Stuffed huckleberries into the top of one and wild apples into the second. Sprinkled with cinnamon and brown sugar. THE BEST.
    Going to try today with fresh pears and dark chocolate.

  4. 5 stars
    This came out so good. I feel like so often keto cakes end up being super gritty or dense, but this was melt in your mouth soft and paired really well with the keto lemon cream cheese frosting I made. The only place I deviated was that I used 1/4 cup whole cows milk and 1/4 cup of coconut milk to have less sugar overall because I was out of almond. Really good. This is going to be my main cake recipe going forward.

  5. 5 stars
    Best ever! I’m making this and just going to add fresh strawberries and whip cream. But I swear this hands down the best cake!!

  6. My wonderful daughter-in-law just made this for my birthday a few days ago The cake part of this is truly delicious! I plan to use it as my standby recipe for strawberry shortcake the minute the berries are ready for picking!

      1. 5 stars
        Hi Arman,
        I know you’re an Aussie, so hopefully you can answer this question: could I use this recipe in place of butter cake to make an Australian Women’s Weekly birthday cake? It’s tradition in my family to choose a cake from the book for one’s birthday and I don’t want to break that if I don’t have to!

      2. Hi Lexi! I’d be super cautious of that- That WW cake is a classic haha and this isn’t really the same 🙂

  7. Hi Arman, I made the keto vanilla birthday cake, and the flavor and texture are very good. I used Monk Fruit with Erythritol, and the cake is extremely sweet, too much so. If I were to cut the sugar in half, would the recipe still work as far as texture and properly setting up, do you think? If so, I would definitely make it again. I tried the keto donuts and chocolate keto muffins using Swerve (Erythritol only), and I did not have a problem with too much sweetness, so I could go back to the Swerve. Thanks for any suggestions.

  8. 5 stars
    This recipe worked really well and I look forward using it to make our Christmas Trifle on Saturday. Could you let me know what size cup you use, American or Metric? I’m in NZ so we’re metric.

    1. I use American 🙂 (I’m in Australia but the biggest audience is American so I use that as my standard measurement)

  9. 5 stars
    I’ve made this thrice now, with keto chocolate cream cheese frosting – twice as 6″ cakes, and once in an 8×12 pan – always turned out great.

  10. 5 stars
    This is an awesome recipe! Baking is a science I do NOT understand, and removing gluten and sugar makes that science even more foreign to me. But I followed the directions (for the most part) and it came out really great!!

    I wanted a small cake for an adult’s party at a restaurant, so I used Wilton’s 6″ springform pan, and this is where I veered off course and almost scrapped the whole thing. For a minute, the cake appeared to be both burnt AND liquid, but after googling a bunch: you can do this, but you have to cook it at a much lower temperature for longer. Also, you should PROBABLY make 3 separate layers instead of one 6″x3″ block of cake, but hey, live and learn. Just saying, you CAN make the cake this way, but you probably should not.

    Long story short, I panicked and went with a boxed cake for the party but saved this keto cake in my fridge. I got into it at 2am and drizzled some keto cream cheese icing over it and…IT IS SO GOOD. It’s dense and moist and heck yeah, I’d make this again. I bet if I’d sliced it into 3 layers & added icing it would have blown everyone’s socks off. For now, I’m going to have this with coffee in the morning and pretend it’s a breakfast pastry.

    THANK YOU for such yummy recipes!! <3

  11. 5 stars
    Very Very good. I made this for my daughters birthday but was serving a diabetic in the family as well. I read the disclaimer about consulting with a nutritionist . The cake was yummy! I made it in a 9×13. Thank you for the recipe!

  12. 5 stars
    This cake was amazing! I made it into cupcakes and the whole family enjoyed them; even the non Keto folks!

  13. I can’t have almond flour ,so used tiger nut flour instead. Also added coffee powder and walnuts, and coffee frosting. Delicious.

  14. Hi there. I really want to try this! Is it possible to fold in fresh strawberries into the batter and then bake? Thanks!

  15. Hi. Great tasting cake, thanks for the recipe. Mine did not rise to look like your amazing photo though. I used Red Mill Organic Coconut Flour. I tried doubling the baking powder to help with the rise, not much difference. Any other suggestions on how to get it too rise? Thanks very much 🙂

    1. Sure! Make sure the oven is preheated very well- To ensure it rises, you can increase by 10 degrees for the first 10 minutes then quickly reduce back to the original heat.

  16. 5 stars
    This was my first keto dessert. I always get a Publix Raspberry Elegance cake so I used this cake recipe, your cream cheese icing, and made a raspberry filling. It was amazing! You would not have known it was keto! Delish! Thanks for my new birthday favorite!

  17. Hi! I upped the servings to 24… without looking at the cake pan size before I started adding ingredients! Now I’m about to bake but the cake pan shows two 8 inch still. Do you think I should use 9 inch pans?

  18. Hi, do you use US cups or UK cups? Or, is there somewhere where you convert your recipes to grams? I live in Asia so cups are different sizes here! Thank you =)

  19. This actually works.I have tried and failed with lots of different recipes .
    This is really easy to make and tastes amazing.
    I used keto frosting and decorated it with sugar-free rainbow sprinkles for a special birthday cake –
    The only issue was I struggled to convert to UK measures
    Thank you

  20. 5 stars
    I have (with good reason) been suspicious of keto recipes claiming to be just like the unhealthy original, but this was so much like a classic yellow cake that I couldn’t believe it. I put mine in the refrigerator to firm it up some and then it was even better. Even without frosting.

  21. 5 stars
    This is the best keto cake I have made so far! It’s so moist and fluffy. And it was so easy! Thanks so much!

  22. 5 stars
    Thank you for an awesome cake recipe! My husband and I recently switched to a keto lifestyle, and as a baker, I had to make so many cake recipes to create a moist, but crumbly, light cake. This is the first keto cake I’ve ever made, and I’m surprised by how wonderful it turned out, as written, no changes. I spent years trying to create this texture with normal, gluten filled ingredients, and here you’ve made it as easy as ONE recipe. This will be my go to, thank you!
    Note: I am sensitive to the flavor of coconut, and I don’t personally like coconut. I would NOT recommend this particular recipe to anyone who does not like coconut. If you don’t mind it though, give it a shot!

    1. Thank you, Ella! If you find coconut secret coconut flour, it has no coconut flavor at all 🙂 Same with refined coconut oil.

  23. I want to make this as a cereal cake. Can I substitute some of the flour for ground-up cereal or should I just steep the cereal in the milk? Also, I have heard monk fruit has a cooling effect. Does this cake have that? If so can I use coconut sugar instead?

  24. Is there other flours I can use if I have a tree nut allergy? Coconut flour is ok, but the Almond flour I cannot do. Is there a substitute for the Almond flour? Thanks!

  25. 5 stars
    Made this as Christmas cupcakes for my hubby. Loved it. Used the buttercream recipe for frosting. Got 12 large cupcakes. Cooking time was double. We tried one(shared) without frosting, luke warm, it was light, airy and perfectly delicious, but after cooling densed up a bit and had a slightly(very slight) bitter after taste that the lukewarm one did not have, I was wondering why. Used Blue Diamond Fine sifted Almond flour, Bob’s Red Mill coconut flour, granulated splenda, Land o Lakes spreadable butter w/Canola oil, Jumbo eggs instead of large, LC foods rehydrated low carb milk,Did not have heavy cream so used Splenda coffee creamer, Davis double acting baking powder, salt and vanilla extract. Next time I plan on having the heavy cream and softened stick butter. We are going to warm up the current ones and see if that has a reversing effect, the frosting will melt but will probably still taste good.

  26. Hello!
    I saw the recipe called for vegan butter but I can’t easily find it so instead can we use oil? If yes then,
    Which oil?
    Will it be the same qty as the butter?
    Also I am Vegetarian so I don’t consume Eggs,What’s the bestest alternative?
    Also Erythritol Qty would be the same as listed above or maybe more or less?
    Also can we have an alternative to milk or maybe can we just obsolete it from the recipe?

    Waiting for your reply!

    Thank you

  27. Hello! I saw the recipe called for vegan butter but can I use regular? Also, should I use salted or unsalted?
    Thanks so much! Can’t wait to test this recipe out!!

  28. Hi. I followed this recipe, and the cake was delicious. It looks just like the picture as far as color and texture, but it only yielded enough for two 6″ pans. I followed the recipe exactly. I’m confused how that happened.

  29. Hello, I have tried this recipe multiple times now and I absolutely love it. The very first time I used rice flour because I didn’t have coconut flour and it worked pretty well but it was a little dense and it didn’t rise, So after that I have tried it at least another 4-5 times now with the coconut flour but still hasn’t risen using the Bob’s Red Mill brand.

  30. 5 stars
    Hands down the best low carb vanilla cake recipe, and I’ve tried many before. I used this recipe to make Battenberg cake and it turned out perfectly! It really does taste like regular vanilla cake. I used monkfruit blend and added a few packets of Stevia to cut the cooling effect. Thank you!

  31. 5 stars
    I came back to comment again after trying the cake. Though it was a bit dense, the flavor was incredible! It reminded me of what an old fashioned wedding cake tasted like. Even my children really liked it! I will be saving this recipe and using it again!

  32. can I use coconut oil if I refrigerated it and it becomes solid instead of vegan butter trying to keep it dairy-free? so can I use coconut oil instead of vegan butter?

  33. Hi there, love your recipe and would love to make it for my birthday coming soon. Please what type of sprinkles did you use?Or normal one is fine? Thanks

  34. I am happy to say that everyone at the birthday party loved the cake!! The cherry cream cheese filling was perfect and the whipped coconut cream tasted just like whipped cream!! I was really amazed.

  35. I just popped the pans into the oven. This is my first try for a birthday cake gift. I was surprised that the batter is so grainy. I can’t see where I might have done anything wrong. Well, I will find out in 20 minutes! So far it looks like it might work. I mixed up sugar-free cherry jello and I am going to try to mix it into whipped cream cheese for a center filling. I also bought coconut cream for frosting if all else fails. This has been a challenge but it is a cake made with love and that’s delicious!

  36. I was shocked by how good this cake is! It is quite dense but moist and delicious. Made for a perfect birthday treat!

  37. 5 stars
    Tried this for my diabetic girlfriend’s birthday. I’m pretty solid in the kitchen so I don’t think I messed anything up. Cake didn’t rise, the batter was thick like cookie dough, wasn’t fluffy or sweet after baking. Used Stevia in the Raw for sweetener. May try it again but not sure what I’d do differently. Thoughts?

    1. Hi Adam! I’m not sure why it hasn’t risen- would you mind telling me what brand of coconut flour you used? Also, stevia in the raw isn’t recommended for baking, as when it’s heated, it loses its flavor- I recommend monk fruit sweetener or swerve.

    1. Yes, but not including frosting as that depends on which one you use. Adjust the macronutrients to reflect that

  38. Looks fantastic! But i have a question… this nutrition facts are just for the cake? Or includes any type of frosting?

  39. Hi there! I love your recipes and have tried many but I get stuck with ones using coconut flour. I have a severe allergy to coconut unfortunately. Any suggestions for a sub? Thank you for all your wonderful work!

    1. I have make his Keto Chocolate Cupcakes and it doesn’t have coconut flour and they are amazing. I used a chocolate butter/cream cheese frosting, Also very good.

  40. OK, cutie, I’ve printed off the recipe, but where do I find the Cashew Cream Cheese Frosting recipe?? I’ve searched all over your site and can’t find it!!!

  41. Can you tell me know many serving in a whole cake. I plan on baking this for an American Independence Day Celebration. Slicing each layer in half and filling with blueberries and raspberries with whipped coconut cream.