Sweet Potato Cake

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4.99 from 168 votes
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My sweet potato cake recipe uses creamy sweet potato puree to make a rich and moist chocolate cake! It’s made with only a food processor. Naturally dairy AND gluten-free!

Love baking with sweet potatoes? Try my sweet potato brownies, sweet potato blondies, sweet potato muffins, and vegan sweet potato pie next.

sweet potato cake.

If you’re not baking with sweet potatoes, you’re missing out. 

Don’t get me wrong—I know it sounds weird, but once you take a bite of this moist, crumbly chocolate cake, you’ll wonder why you didn’t think of it sooner!

Table of Contents
  1. Why I love this recipe
  2. Ingredients needed
  3. How to make sweet potato cake
  4. Arman’s recipe tips
  5. Storage instructions
  6. Frequently asked questions
  7. More unconventional desserts to try
  8. Sweet Potato Cake (Recipe Card)

Why I love this recipe

  • NO sweet potato flavor. I promise you won’t be able to taste it whatsoever.
  • The perfect texture. Sweet potato adds moisture and keeps the cake soft while keeping the fat content low. 
  • All you need is a food processor. The cake batter is made entirely in your food processor, so clean-up is done in a snap. 
  • Naturally diet-friendly. This recipe has no gluten or dairy because you don’t need it!

★★★★★ REVIEW 

“Arman!! I MADE THIS!!!! Wowee! What a show-stopper!”Kelley

sweet potato chocolate cake.

Ingredients needed

  • Coconut flour. My preferred alternative to all-purpose flour. It’s high fiber and high absorbency, helping to give the cake a perfect crumb. Sift it first to remove any clumps. 
  • Cocoa powder. Use either dark cocoa powder or a good quality Dutch-processed cocoa powder. 
  • Granulated sugar. I used white sugar, but brown sugar or coconut sugar can also be used. 
  • Baking powder. Gives some rise and fluffiness to the cake. 
  • Salt. Brings out the natural sweetness.
  • Sweet potato. Cooked, cooled, and mashed. See my tips below for the best way to puree your sweet potato! 
  • Eggs. Room temperature eggs are best. While I haven’t tested this recipe without eggs, you’re welcome to swap them for an egg substitute. I’ve successfully made this using an egg replacer (Bob’s Ener-G is my favorite).
  • Coconut oil. Gives the cake a moist texture without butter. Alternatively, vegetable oil can also be used. 
  • Maple syrup. For sweetness and extra moisture. Agave nectar also works. 
  • Vanilla extract. A must for any good cake recipe!
  • Chocolate frosting. Use your favorite frosting. I’ve used both my healthy frosting and dairy free frosting

How to cook the sweet potato

You have a few options when it comes to making mashed sweet potatoes. Here’s what I suggest:

  • Microwave. Follow my microwave sweet potato recipe, or cut the potatoes into chunks, place them in a microwave-safe bowl, and pour 2-3 inches of water on top. Microwave for 6-7 minutes or until fork-tender. 
  • Air fryer. Follow my air fryer baked sweet potato recipe, or place the washed potatoes in a greased air fryer basket and air fry at 200C/400F for 20 minutes.
  • Oven. Cover the potatoes in aluminum foil and bake for 40-50 minutes, until soft. 
  • Stovetop. Fill a pot with water over medium heat. Bring to a boil, add the potatoes, and reduce the heat to low. Let them simmer for 30-35 minutes or until tender. 

Once the potatoes are cooked and cooled, puree them separately or add them to the food processor with the remaining ingredients. 

How to make sweet potato cake

I’ve included step-by-step photos below to make this recipe easy to follow at home. For the full printable recipe instructions and ingredient quantities, scroll to the recipe card at the bottom of this post.

Step 1- Prep. Preheat the oven to 180C/350F and grease a 9 or 10-inch cake pan.

cake batter in a blender.

Step 2- Make the cake batter. In a blender or food processor, add all of the wet and dry ingredients and pulse until smooth.

cake batter in a round cake tin.

Step 3- Bake. Transfer the batter mixture to the greased cake pan. Bake the cake for 45-50 minutes or until a toothpick comes out clean. Allow the cake to cool completely before frosting.

Arman’s recipe tips

  • Save time. When I’m short on time, I’ll use canned puree. Just make sure it’s 100% unsweetened. 
  • Don’t overbake the cake. Once a toothpick comes out with a few moist crumbs, it’s safe to remove from the oven. Even if the cake seems fragile, it’ll continue to cook as it cools. 
  • Make a double-layered cake. Double up the cake and frosting ingredients. Wait for the cake layers to cool completely before frosting and layering. 

Variations

  • Add spices. Whisk in cinnamon, nutmeg, or instant coffee for more flavor. 
  • Make a cream cheese frosting. In a large bowl, beat together softened cream cheese, vanilla, and powdered sugar until smooth.
  • Play around with mix-ins. Try chopped pecans, walnuts, fresh raspberries, or toasted coconut flakes. 

Storage instructions

To store: Store the leftover cake in an airtight container in the refrigerator for up to two weeks. 

To freeze: Place cake slices in a freezer-safe container and freeze for up to six months. Let them thaw overnight in the fridge.

sweet potato cake with chocolate.

Frequently asked questions

Can you substitute the sweet potato?

Yes! Any mashed starch should work, and I’ve tested this cake successfully with pumpkin puree, butternut squash puree, and mashed bananas.

Can I omit the cocoa powder?

Yes, if you’d prefer this cake not to have any chocolate flavor, omit the cocoa powder and add an extra teaspoon of coconut flour.

More unconventional desserts to try

sweet potato cake recipe.

Sweet Potato Cake

4.99 from 168 votes
My sweet potato cake recipe uses creamy sweet potato puree to make a rich and moist chocolate cake! It’s made with only a food processor. Naturally dairy AND gluten-free!
Servings: 12 servings
Prep: 5 minutes
Cook: 45 minutes
Total: 50 minutes

Ingredients  

Instructions 

  • Preheat the oven to 180C/350F. Grease a 9 or 10-inch cake pan and set aside.
  • In a high-speed blender or food processor, add the coconut flour, cocoa powder, sugar, baking powder, salt, mashed sweet potato, eggs, maple syrup, coconut oil, and vanilla, and pulse until smooth and combined.
    cake batter in a blender.
  • Transfer the cake batter to the greased cake pan. Bake the cake for 45-50 minutes, or until a skewer comes out clean.
    cake batter in a round cake tin.
  • Allow the cake to cool completely, before frosting it.

Notes

This makes a single layer cake. For a 2 layer or 3 layer cake, double or triple the ingredients. 
* I’ve tried this with Bob’s Egg replacer, and it worked very well. I cannot vouch for flax eggs or chia eggs.
TO STORE: Store cake in the refrigerator, in a sealed container. I recommend eating the cake within 2 weeks. Any longer and the cake will become even moister. 
TO FREEZE: Place slices of cake in a freezer friendly container and store in the freezer for up to 6 months. Thaw overnight in the refrigerator. 

Nutrition

Serving: 1servingCalories: 183kcalCarbohydrates: 23gProtein: 3gFat: 11gSodium: 198mgPotassium: 151mgFiber: 3gVitamin A: 45IUVitamin C: 3mgCalcium: 74mgIron: 1mgNET CARBS: 20g
Course: Dessert
Cuisine: American
Author: Arman Liew
Tried this recipe?Give us a shout at @thebigmansworld or tag #thebigmansworld!

 Originally published September 2020, updated and republished September 2024

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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4.99 from 168 votes (154 ratings without comment)

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Comments

  1. 5 stars
    This looks incredible!!! Even though there’s sweet potatoes, I’d like to make it a little bit more Keto friendly! Can I use a sugar substitute like Erythritol, Monk fruit or Allulose? If so, how much?
    Thank you very much!

  2. 5 stars
    Arman!! I MADE THIS!!!! Wowee! What a show stopper!

    I actually substituted butternut squash for the sweet potato…because that’s what I had. And it was AMAZING!! My Friends absolutely loves it, and were super impressed by it…Thanks!!

  3. Hello, i woult like to make this cake to my sons birthday. Could you please tell me which ingredients is for the frosting? I see all in one list. And I cant find it specified.
    Greetings,
    Ausra