Fudgy, moist, and rich in chocolate flavor, these vegan protein brownies are a delicious way to satisfy your sweet cravings! Each serving packs over 10g of protein and comes together quickly in one bowl. They’re also freezer-friendly, making them perfect for meal prep.
These protein brownies are great for a light pre-workout meal paired with a soy latte or protein iced coffee. You can also have them as a quick high-protein snack or a satisfying dessert.
If you're craving a decadent sweet treat while still meeting your protein goals, these vegan protein brownies are a must-try! I love having a batch on hand along with chocolate banana protein muffins, protein flapjacks, or vegan protein cookies for a quick and satisfying high-protein snack.
💚Why you will love this recipe
- Ultra fudgy, gooey, and decadent
- Easy to make, one-bowl recipe ready in an hour
- Good source of protein - a serving (2 slices) contains 11g protein, under 250 calories
- Great for meal prep and is freezable!
🍌What you will need
- Banana – Acts as the primary sweetener and binder; use ripe, spotty bananas for the best flavor.
- Oat flour – Provides structure to the brownies. You can easily make it at home by blending oats in a high-speed blender.
- Maple syrup – Reduce the amount if your protein powder is already sweet.
- Protein powder – Boosts the protein content while adding a slightly chewy texture. I use Nuzest chocolate protein powder, and am loving it!
- Cocoa powder – Use high-quality cocoa for richer, more decadent brownies. I highly recommend Cacao Barry’s cocoa powder.
- Baking soda – Helps lift the brownies slightly since they’re made without eggs. Omit for ultra-dense, fudgy brownies.
See the recipe card for full information on ingredients and quantities.
✨Substitutions and add-ins
- Peanut butter – Swap with any nut or seed butter like tahini or sunflower seed butter for a nut-free option.
- Maple syrup - Can be substituted with other liquid sweeteners like agave or sugar-free syrup. If your protein powder is particularly sweet, omit and add more milk if the batter is thick.
- Milk – Any dairy-free or regular milk will work.
- Banana substitute – Can be substituted with pumpkin or sweet potato puree, but you might need to add more maple syrup to sweeten.
- Single-serve option – Highly recommended checking out my protein mug brownie or chocolate protein mug cake!
- Frosting ideas – Keep it classic and go for your favorite chocolate frosting. Or, make a healthier version using chocolate hummus or protein frosting.
- Mix-in options – Get creative and add chocolate chips, crushed walnuts, coconut flakes, or chopped candy bars!
🔪How to make vegan protein brownies
Step 1: In a large mixing bowl, mash the bananas until fairly smooth. Add the rest of the wet ingredients and give everything a quick stir.
Step 2: Now, add in dry ingredients and mix until everything is well combined. The batter will be thicker than regular brownie batter.
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Step 3: Transfer the brownie batter to the lined baking pan. Smooth it out using a spatula or the back of a spoon. If desired, top with more chocolate chips.
Step 4: Bake for 22-25 minutes, then let your vegan protein brownies cool completely before slicing and serving.
💡Baking tip
Brownies are done baking when a toothpick comes out fairly clean with a few moist crumbs clinging onto it.
✔Helpful tips
- Adjust the sweetener – The sweetness of your protein powder will vary, so adjust accordingly. Once mixed, you can taste the batter to see if it needs more or less sweetener.
- Baking time matters - For gooier brownies, slightly underbake them. If you prefer firmer brownies, bake longer, but avoid overbaking. When done, a toothpick should come out fairly clean with a few moist crumbs.
- Let them cool before slicing – Warm protein brownies are fragile and crumble easily. Cool for at least an hour, then use a non-serrated knife for clean slices.
❄Storing suggestions
Fridge - You can refrigerate vegan protein brownies for up to 4 days in an airtight container.
Freezer - Brownies can be frozen for up to 3 months in a sealed container. Place a piece of baking paper between each layer to prevent them from sticking together.
Reheating - For frozen brownies, simply let them thaw in the fridge overnight, and it is ready to be enjoyed. If you prefer warm brownies, heat them in the microwave for around 30 seconds before enjoying them.
❔Commonly asked questions for protein brownies
These vegan protein brownies are naturally gluten-free. However, cross-contamination might occur during the processing of oat flour, so if you are sensitive to gluten, make sure to get one that is certified gluten-free.
Overbaking is the most common cause of dry, crumbly brownies. Check for doneness by inserting a toothpick down the middle. If it comes out fairly clean with a few moist crumbs, your brownies are done baking.
You might also inaccurately measured the ingredients, and added too much dry ingredients. I highly recommend weighing ingredients using a kitchen scale for the highest accuracy.
I would not recommend omitting or substituting protein powder with more flour in this recipe. If you want brownies made without protein powder, I recommend checking out my aquafaba brownies or oatmeal brownies instead.
📖 Recipe
Fudgy Vegan Protein Brownies
Equipment
Ingredients
- 2 medium banana about 225g/8oz
- ½ cup almond milk or any other milk of choice
- ¼ cup cashew butter or another nut/seed butter
- ¼ cup maple syrup or any other liquid sweetener
- 1 cup oat flour *
- ½ cup chocolate protein powder
- ½ cup cocoa powder
- 2 teaspoons baking powder
- ⅓ cup dark chocolate chips
Instructions
- Preheat oven to 180C/350F. Line an 8x8 baking pan with baking paper.
- In a large mixing bowl, mash banana with a fork or potato masher until smooth.2 medium banana
- Add the rest of the wet ingredients and stir to mix.½ cup almond milk, ¼ cup cashew butter, ¼ cup maple syrup
- Now, add all dry ingredients into the bowl and gently combine until a batter forms. The batter will be slightly thicker than regular brownie batter but still fairly easy to stir.1 cup oat flour, ½ cup chocolate protein powder, ½ cup cocoa powder, 2 teaspoons baking powder, ⅓ cup dark chocolate chips
- Transfer batter to the baking pan, and gently smooth it down using a spatula or back of a spoon. Optionally, top with more chocolate chips.
- Bake for 22-25 minutes, or until a toothpick comes out fairly clean with a few moist crumbs clinging. Let it cool completely before slicing and serving.
Notes
- Adjust the sweetener – The sweetness of your protein powder will vary, so adjust accordingly. Once mixed, you can taste the batter to see if it needs more or less sweetener.
- Baking time matters - For gooier brownies, slightly underbake them. If you prefer firmer brownies, bake longer, but avoid overbaking. When done, a toothpick should come out fairly clean with a few moist crumbs.
- Let them cool before slicing – Warm protein brownies are fragile and crumble easily. Cool for at least an hour, then use a non-serrated knife for clean slices.
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Nutrition
Nutrition info calculated is just a rough estimate and is provided as a courtesy. Bear in mind that value will vary based on variables like specific brand or type of product used. To obtain the most accurate representation, it is highly recommended that you calculate it on your own with the actual amount and type of ingredient used.
Shruti Gupta says
This is wonderful, guilt-free, sweet tooth satiating dish. It tastes scrumptious. I personally like peanut butter so I didn't change anything in the recipe and followed all the steps to get the awesome result.
If you have such healthy options around then there are no worries of gaining weight. Thank you Meesha for sharing such recipes.
Mama Maggie's Kitchen says
My mouth is literally watering. My family would love this..
Leslie says
Perfect Healthy Brownie recipe!
Natalia Soto says
I did this recipe today and is so so yummy and fudgy, I’m really glad I found this page. Will definitely do it again. Thanks 💕
meesha says
I am really glad that you like it ! 😊
Alena says
I love how fudgy these brownies are!
meesha says
Really glad you like it !
Chef Dennis says
This Fudgy Sweet Potato Brownies is making me drool!
Jill says
Thanks for this recipe! I'm always looking for healthy options for desserts, I like that you're using ingredients I already have at home! Plus I still have leftover sweet potatoes from Thanksgiving. I'm going to give this recipe a try this week!
meesha says
Yay ! I really hope u like it !
Ksenia Prints says
Sugar-free + brownies = the recipe to my heart.
Christina says
This was so delicious!
Sabrina says
What a great vegan recipe!
Raquel says
I am going to make these! They look delicious!
Chloe says
Delicious- what a great idea for a healthy brownie!