Healthiest Protein Brownies

3.80 from 5 votes
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These Healthy Protein Brownies are fudgy, sweet, filling, and don’t have any added sugar. They’re high-protein, low-calorie, dairy-free, gluten-free, and vegan with the right protein powder.

Craving brownies on your protein-packed fitness regime? Look no more! These lovely and fudgy bars will satisfy you without hurting your muscle mass.

Don’t you just love when you stumble upon sweet delights that do not require adding sugar?

healthy Protein Brownies

I, for one, am obsessed with those desserts. So I’m always trying to come up with something creative in the kitchen. This is, by far, one of my proudest sweet creations!

Without added sugar but loaded with mashed bananas. This vegan and protein-packed dessert is also great for breakfast. Or as an after work-out snack, too.

Filling, sweet, and incredibly pleasing to the taste buds. You better make a larger batch if you have guests coming over because everyone will be asking for a second bar.

The best of all? This lovely treat will easily satiate you, so you’re not too tempted to overindulge!

If you want to add a bit of a “bite” to these bars, I’d suggest adding some chopped nuts to the mix.

low calorie protein brownie recipe

Ingredients You’ll Need

Ripe bananas (4, mashed) – When choosing the bananas for this recipe, make sure they are super ripe. Overripe is fine.

Almond milk (3/4 cup) – You can use oat milk or even full-fat if you’re not following a plant-based diet.

Cocoa powder (2 tbsp) – Two generous scoops of cocoa powder are needed here. I love Dutch-processed cocoa. But you can use any kind, as long as it is unsweetened.

Protein powder (2 scoops) – To bulk up on protein, we add protein powder to the mix. Vanilla or chocolate. Make sure they’re dairy-free for a vegan option.

Flaxseed powder (2 tbsp) -Instead of flour, use flaxseed powder. It’s very nutritious.

Baking powder (1 tsp) – To create a lighter consistency, you will need a teaspoon of baking powder to lift up the batter.

ingredients for healthy protein brownies

How to Make Protein Brownies

Step 1. Start by preheating your oven to 350 degrees F. Line an 8×8-inch baking dish with parchment paper. Place the bananas and almond milk in a blender.

Step 2. Blend the bananas and milk until smooth, and transfer the mixture to a bowl.

Step 3. Add the cocoa powder, flaxseed powder, baking powder, and protein powder.

Step 4. Mix everything until the mixture becomes incorporated well.

Step 5. Transfer the batter to the previously prepared baking dish and place in the preheated oven.

Step 6. Bake for about 30 minutes or until a toothpick inserted in the center comes out dry. The color should be dark brown.

step by step instructions how to make protein brownies

Step 7. Allow a few minutes to cool before cutting into bars and serving.

healthy high protein brownies

Can I Use Chocolate Protein Powder?

Absolutely! If you don’t have regular protein powder, you can definitely use the chocolate kind for this recipe.

If it is too chocolatey for you, you can cut the cocoa powder in half and use just a bit more of the flaxseed powder to get a similar consistency.

Watch How to Make

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Oatmeal Cookie Bars

Healthiest Protein Brownies
3.80 from 5 votes

Healthiest Protein Brownies

These protein brownies are sweet, fudgy and soft. They have no added sugar, are high in protein, gluten-free, low-calorie, dairy-free and vegan.
Prep: 10 minutes
Cook: 30 minutes
Total: 40 minutes
Servings: 9 squares


  • 4 ripe bananas mashed
  • ¾ cup almond milk
  • 2 tbsp cocoa powder
  • 2 scoops protein powder
  • 2 tbsp flaxseed powder
  • 1 tsp baking powder


  • Preheat the oven to 350F. Cover an 8’’x8’’ baking dish with parchment paper.
  • Pop bananas and almond milk into a blender and blend until one smooth texture.
  • Pour the mixture into a bowl and add in cocoa powder, protein powder, flaxseed powder and baking powder.
  • Combine all of the ingredients well to create smooth batter.
  • Transfer the batter into the baking sheet, level it out.
  • Bake in the oven for 30 minutes until fully baked.

Recipe Video


Serving: 1 square | Calories: 91kcal | Carbohydrates: 14g | Protein: 6.8g | Saturated Fat: 0.2g | Polyunsaturated Fat: 0.7g | Monounsaturated Fat: 0.3g | Cholesterol: 1.1mg | Sodium: 67mg | Potassium: 242.1mg | Fiber: 2.4g | Sugar: 7g | Calcium: 73mg | Iron: 0.8mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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3.80 from 5 votes (5 ratings without comment)

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  1. Sílvia Vargas says:

    Can use use powdered chia instead of flaxseed powder?

    1. Karo @ AllNutritious says:

      Give it a try! I haven’t done it myself but I think it should work. 🙂 Add 1 tbsp instead of 2 tbsp perhaps and report back! 🙂