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These protein brownies are super fudgy, gooey, and need just four ingredients to make! No flour, no eggs, and no butter needed, I love how they are a guilt-free dessert fix.
Looking for more high protein desserts? Try protein banana bread, protein cookies, and protein cheesecake.
As someone with a raging sweet tooth, getting my chocolate fix in healthier ways are always a plus. When I want something rich and chocoately, nothing beats these fudgy high protein brownies!
My protein mug cake inspired these brownies. It’s essentially a single-serving version, but as someone who enjoys this so often, I need a big batch! These are a staple in our kitchen, and I have no doubt they will be in yours, too!
Table of Contents
Why you’ll love this protein brownies recipe
- They need just four ingredients. Bananas, cocoa powder, almond butter, and protein powder.
- Each brownie has 12 grams of protein. Not only do these brownies satisfy the sweet tooth but they also keep you fuller for longer.
- You can add even more protein! If 12 grams isn’t enough, you can double that by spreading a protein frosting over the top (check the recipe card for the details!).
- Naturally vegan and gluten-free. These are great if you can’t eat eggs or flour. Oh, and they are dairy-free, too.
What I love about these brownies is that they taste incredible and have the best fudgy texture- everything you need in a good chocolate dessert!
Ingredients needed
The beauty of making these high protein brownies is that everything is thrown in a blender, bowl, or mixer to create a batter (unlike other brownie recipes). All you do then is bake it up and you are done!
- Almond butter. Smooth and creamy with no added sugar. I either make my own or opt for a store-bought no-stir kind.
- Banana. The riper the bananas are, the sweeter the brownies will be. Are you not a fan of bananas or allergic? Swap it out for equal parts pumpkin puree or unsweetened applesauce. However, you will need to add some sweetener or syrup to compensate for the lack of sweetness.
- Cocoa powder. I like using dark cocoa powder for an extra rich flavor, but any cocoa powder works.
- Protein powder. Using a chocolate protein powder will yield the best chocolate flavor, but vanilla will also work.
- Salt. Optional, but a pinch of salt to enhance the sweet flavors.
- Mix-ins. Optional, but I love to add some dark chocolate chips, vanilla extract, or chopped dark chocolate.
How to make protein brownies
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- Make the batter. Start by adding all your ingredients into a high-speed blender or food processor. Blend the ingredients together until fully combined. If desired, add some chocolate chips. You can also mix by hand in a large mixing bowl.
Step 2- Bake. Then, transfer the batter into a lined pan and bake for 15-20 minutes, or until a skewer comes out ‘just’ clean. While the brownies are hot in the pan, lightly press your hand over the top to form unnatural cracky tops.
Step 3- Cool then slice. Allow the brownies to cool in the pan completely before drizzling with chocolate and slicing them up.
Recipe tips and variations
- Use the right protein powder. Not all protein powders are equal. Casein, brown rice, and pea protein powders are far superior to whey protein powder or whey protein blends. Whey-based powders tend to dry out baked goods.
- Make the brownies sweeter. These brownies rely on the banana and the (sweetened) protein powder for sweetness. If you prefer sweeter brownies, add a few tablespoons of sugar or maple syrup.
- Do not overbake them. Once the brownies are firm on top and a skewer comes out mostly clean, they are ready to be removed from the oven.
- Add mix-ins. Like any good brownie, these are a blank canvas, so fold through some chocolate chips, walnuts, or even candy!
- Frost them. To take these brownies to another level, add a layer of sugar free frosting or healthy frosting to them.
- Make protein brownie bites. Instead of baking them in the square pan, bake them in a muffin tin.
Storage instructions
To store: Leftovers should be stored in the refrigerator, covered, as they will spoil at room temperature. They will keep well for up to five days.
To freeze: Place the brownies in an airtight container and store them in the freezer for up to 6 months.
Frequently asked questions
Compared to traditional brownies, high protein brownies are healthier, as they contain less sugar, less carbs, and added protein.
Adding some almond or oat flour will give these brownies stability and structure, but it isn’t necessary.
To get the crackly tops, you need to press down on them once removed from the oven. They do not occur naturally.
More high protein recipes to try
- Protein ice cream
- Protein muffins
- Protein donuts
- Protein pudding
- Protein cookie dough
- Protein cupcakes
- Protein cinnamon rolls
Protein Brownies
Video
Ingredients
- 1 cup banana measured as mashed
- 1/2 cup almond butter can sub for peanut butter, cashew butter or a nut butter alternative
- 1/4 cup cocoa powder
- 1/2 cup protein powder
Instructions
- Preheat the oven to 180C/350F. Line an 8 x 8-inch pan with parchment paper and set aside.
- In a high speed blender or mixing bowl, combine all your ingredients and blend or mix until smooth.
- Transfer the brownie batter to the lined pan and bake for 15-20 minutes, or until the tops are firm.
- Remove the brownies from the oven and gently press down on the tops to form a crackly top. Let them cool completely before slicing and serving.
Notes
Nutrition
Originally published September 2016, updated March 2024
Banana bars are good really!
Holy cow these are good! Sooo super fudgy! I saw some people commented on the thinness of the brownie after baking, so I added a whipped egg-white and a dash of baking soda. They were puffed up and fudge-tastic! I also added a dash of vanilla extract and a dash of espresso powder. The protein powder I had on hand was vital-proteins chocolate collagen powder. I had some no-sugar-added espresso baking chips that I sprinkled on top as well. The bake took around 25 minutes…maybe because I added some extras? I probably could have baked it a few minutes more, to be honest, but was worried about over-baking, which I’m prone to do. These are a bit banana-forward, but I love banana, so FYI if you don’t. Love love LOVE this recipe! Thank you for the low-cal, high protein, sweet-tooth-satisfying deliciousness!
Best high protein brownies ever. I added 1/2 cup cacao chips.
I would like to know what the serving size is? How many brownies are cut from the 8×8 pan?
really really good! for my metrics friends out there: 225 gr mashed banana, 125 gr nutbutter, 25 gr cocoa powder, 60 gr protein powder.
Thank you, Bente!
Love these protein brownies for a post-workout snack or when I’m on a cut!
J ai très hâte de essayer votre recette Merci beaucoup.
These are fantastic! My first time baking with protein powder and I am super happy with how they came out! All I had was frozen bananas so I used those and they came out fine. I did a little taste test of the batter before baking to see if I may want to add any extra sweetness and I didn’t but with the frozen bananas, it was like ice cream! Super good, I’ll definitely be making these again!!
WOW! I bake alot, but nothing like this. I cook full fat/sugar. We are trying to make changes to less fat & sugar and more protein. I had Garden of Life Raw Organic Meal protein powder in chocolate, natural peanut butter, 1/4 cup mini chocolate chips, super ripe bananas and organic cocao powder. I cooked them in silicone muffin cups and they popped right out. My husband actually liked them! I think we will be making some changes finally. Try these, you wont be disappointed!
Literally every brownie recipe on here is so indulgent. Love it.
These are so delicious!! I just had two brownies. 🥰 I used chocolate caramel protein powder. Love this recipe! Thank you!!
Works with whey protein isolate! After 3 failed attempts, I (finally) successfully made this with WPI! I baked for just 8 minutes, and it came out PERFECTLY. So fudgy, and not dry at all.
I must say that I was a bit skeptical about whether a brownie recipe with so few ingredients would be fudgy or tasty… boy was I wrong! I’m really surprised and impressed with this recipe. I used whey protein and made a few additions with an egg (to add more structure), a tablespoon of coconut oil and maple syrup each (to stop the protein powder drying out the recipe and add more sweetness), and 1/2 cup of dark chocolate chips (couldn’t resist). I also used cashew instead of peanut butter. They came out perfectly – fluffy, sweet and decadent without being overly rich. I’m amazed that something so simple and relatively healthy can be so tasty! I will definitely be making these brownies again and try different versions and alterations.
Definitely a keeper of a recipe!
Made it with whey isolate protein powder
@corey! Thanks for amazing tip.
I did add 40ml of milk to the above recipe as I found that the batter was quite dry to begin with and baked it in a 6×6 inch tin for 10 mins to begin. Total bake time was 12mins.
They were delicious and fudgy.
Which cocoa powder do you reccomend? Like real one bitter or the one with sugars?
I am tired of feeling guilty when I eat decadent bakery items. No more. I just baked the protein brownies with brown rice chocolate protein powder; added semi dark choc. chips and some slivered almonds I had. I plan to eat a brownie everyday. Super easy and fast. Next week I’ll try choc. protein banana bread. Thank you for the great delicious recipe.
I never leave reviews on recipes, but I actually really like these brownies! Finally something super simple and doesn’t taste like garbage or overly chalky. I used almond butter (ran out of peanut butter), did half cacao/cocoa, and used GoodProtein cookies n cream protein powder. Also added a little goat milk to the blender because it was too thick.
This is the best protein brownies. So fudgy!
NO WAY! This is a game changer.
I subbed out the banana for unsweet pumpkin (less sugar) and wooow! The consistency of the batter is unreal, incredible and my god the brownies are DELICIOUS. I am in shock how good these are. 100/10. I will never make a brownie another way again.