High-Protein Fudgy Chocolate Walnut Brownies

ByHannah Peterson

These are rich, fudgy chocolate walnut brownies — dense chocolate base loaded with crunchy walnuts and topped with a glossy chocolate glaze. They deliver serious brownie satisfaction while being high in protein and low in carbs.

Why You’ll Love This Recipe

  • Ultra fudgy texture with real chocolate flavor
  • Packed with walnuts for crunch and nutrition
  • Very high protein per serving
  • Easy one-bowl recipe
  • Sugar-free, keto-friendly, and perfect for dessert or snacks

Ingredients (Makes 9–12 brownies)

Brownies:

  • ½ cup (115g) butter or coconut oil, melted
  • ½ cup (50g) unsweetened cocoa powder
  • ⅔ cup (130g) allulose or powdered monk fruit sweetener
  • 3 large eggs
  • ⅓ cup (35g) chocolate whey protein powder
  • ¾ cup (75g) almond flour
  • 1 tsp vanilla extract
  • ½ tsp baking powder
  • ¼ tsp salt
  • ¾ cup (75g) chopped walnuts (toasted if desired)
  • For more higher protein: Add an extra ½ scoop of whey to the batter (may need 1–2 tbsp almond milk for consistency).

Chocolate Glaze:

  • ⅓ cup (60g) sugar-free chocolate chips or chopped dark chocolate
  • 2 tbsp butter or coconut oil
  • 1–2 tbsp allulose or powdered sweetener
  • Extra chopped walnuts for topping

Instructions

  1. Preheat oven to 350°F (175°C). Line an 8×8-inch pan with parchment paper.
  2. In a large bowl, whisk melted butter, cocoa powder, and sweetener until smooth. Add eggs and vanilla, mixing well.
  3. Stir in protein powder, almond flour, baking powder, and salt until just combined (do not overmix). Fold in chopped walnuts.
  4. Pour batter into prepared pan and smooth the top. Bake 18–24 minutes until set but still fudgy in the center (toothpick should have a few moist crumbs).
  5. Let cool completely in the pan.
  6. Glaze: Melt chocolate and butter together (microwave in 20-second intervals). Stir in sweetener. Spread over cooled brownies and sprinkle with extra walnuts. Chill 20–30 minutes until glaze sets.
  7. Cut into 9–12 squares.

Prep Time: 15 minutes Bake Time: 20–25 minutes Total Time: 45–60 minutes + chilling

Nutrition (Per Brownie, 1/12)

  • Calories: ~165
  • Protein: 8g (high)
  • Total Carbs: 7g
  • Net Carbs: 5g
  • Fat: 14g

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