These rich chocolate squares swap traditional flour for oat flour and rely on whipped egg whites for structure. It then sneaks in extra protein without turning the texture into something that belongs in a gym shaker bottle. Toasted hazelnuts add crunch, dark chocolate brings depth, and a touch of peanut butter ties everything together.
Fitness enthusiasts, chocolate lovers, and meal preppers will find plenty to appreciate here.
What are Protein Brownies?
Brownies first appeared in the United States during the late 19th century, quickly becoming one of the most beloved chocolate desserts around. Traditional recipes typically rely on butter, large amounts of sugar, and refined flour, creating the dense, fudgy squares.
As interest in fitness-friendly baking grew, home cooks began experimenting with ingredients that could increase protein content. Egg whites, oat flour, nut butters, and nuts became popular additions.
Pro Tips for the Best Protein Brownies
- Egg whites whip more easily when they aren't straight from the refrigerator. Giving them a little time to warm up helps create better volume and a lighter batter.
- Melt the chocolate slowly over low heat. High temperatures can cause it to seize, resulting in a grainy mixture that's harder to incorporate.
- The whipped egg whites contain plenty of trapped air. Folding gently preserves that structure and helps create a softer texture.
- Toast the hazelnuts first. Even a few extra minutes of toasting enhances the nutty flavor dramatically and adds more depth to every bite.
- Oat flour and cocoa powder can form lumps. A quick sift creates a smoother batter and more even texture.
Frequently Asked Questions
What Makes These Brownies Higher in Protein?
The protein boost comes mainly from the egg whites and hazelnuts. Egg whites are naturally rich in protein while remaining low in fat, helping create structure and texture at the same time.
Is Oat Flour Necessary?
Oat flour contributes a soft texture and mild flavor. If needed, finely blended rolled oats can often serve as a homemade substitute. Other flours may require adjustments to maintain the same consistency.
Can I Add Protein Powder?
Yes, but moderation is key. Too much protein powder can make brownies dry or rubbery. Replacing a small portion of the oat flour with protein powder usually produces the best results while maintaining texture.
Why Did My Brownies Turn Out Dry?
Even a few extra minutes in the oven can reduce moisture significantly. Accurate oven temperature and careful timing help preserve the soft, chewy texture these brownies are known for.
How to Store Leftover Protein Brownies
Once completely cooled, they can last at room temperature for 3 days and in the fridge for a week. For freezing, wrap individual pieces separately before placing them in a freezer-safe container for a month.
Ingredients
How to Make Protein Brownies
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Place 80g of the toasted hazelnuts into a food processor and pulse until finely chopped. Set them aside and reserve the remaining 20g for decorating the top of the brownies later.
Place 80g of the toasted hazelnuts into a food processor and pulse until finely chopped. Set them aside and reserve the remaining 20g for decorating the top of the brownies later.
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Combine oat flour, cocoa powder, baking powder, salt, and chopped hazelnuts.
Combine oat flour, cocoa powder, baking powder, salt, and chopped hazelnuts.
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Add the dark chocolate and peanut butter to a small saucepan. Heat gently over low heat, stirring continuously until smooth and glossy. Remove from the heat and allow it to cool slightly.
Add the dark chocolate and peanut butter to a small saucepan. Heat gently over low heat, stirring continuously until smooth and glossy. Remove from the heat and allow it to cool slightly.
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Pour the egg whites into a large bowl and beat with an electric mixer. Once they become foamy and start turning white, add the brown sugar and beat again.
Pour the egg whites into a large bowl and beat with an electric mixer. Once they become foamy and start turning white, add the brown sugar and beat again.
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Slowly pour the cooled chocolate mixture into the whipped egg whites. Using a spatula, fold gently until the chocolate is fully incorporated.
Slowly pour the cooled chocolate mixture into the whipped egg whites. Using a spatula, fold gently until the chocolate is fully incorporated.
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Add the dry ingredient mixture little by little. Fold carefully after each addition until a thick batter forms.
Add the dry ingredient mixture little by little. Fold carefully after each addition until a thick batter forms.
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Line a 20×25 cm baking pan with parchment paper. Transfer the batter into the pan and spread it evenly. Sprinkle the reserved hazelnuts across the surface for extra crunch and decoration.
Line a 20×25 cm baking pan with parchment paper. Transfer the batter into the pan and spread it evenly. Sprinkle the reserved hazelnuts across the surface for extra crunch and decoration.
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Bake in a preheated oven at 180°C (350°F) for 20 minutes. Lift the brownies out using the parchment paper overhang. Transfer them to a cutting board and cut into squares.
Bake in a preheated oven at 180°C (350°F) for 20 minutes. Lift the brownies out using the parchment paper overhang. Transfer them to a cutting board and cut into squares.
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Enjoy!
Enjoy!
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