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Fudgy Peanut Butter Swirl Protein Brownie Bites

Fudgy Peanut Butter Swirl Protein Brownie Bites - featured image

These easy 5-ingredient brownie bites are fudgy, gooey, and packed with a swirl of peanut butter and a boost of protein. Perfect for snacking, lunchboxes, or a healthy dessert that feels indulgent but is secretly wholesome.

Ingredients

Scale
  • 1/2 cup (50g) chocolate protein powder
  • 1/3 cup (80g) natural creamy peanut butter, plus 2-3 tbsp extra for swirling
  • 1/4 cup (25g) unsweetened cocoa powder
  • 2 large eggs, room temperature
  • 1/4 cup (60ml) maple syrup
  • 1/4 cup (45g) mini chocolate chips (optional)
  • 1/8 tsp salt (optional, skip if peanut butter is salted)
  • 1/2 tsp vanilla extract (optional)

Instructions

  1. Preheat oven to 350°F (175°C). Lightly grease a 24-count mini muffin tin or line with paper liners.
  2. In a medium mixing bowl, whisk together eggs and maple syrup until smooth and slightly frothy. Add peanut butter and blend until thoroughly combined. Microwave peanut butter for 15 seconds if thick.
  3. Sprinkle in chocolate protein powder, cocoa powder, and salt (if using). Stir until just combined; do not overmix.
  4. Gently fold in mini chocolate chips and vanilla extract (if using).
  5. Scoop about 1 tablespoon of batter into each mini muffin well, filling each about 3/4 full.
  6. Warm 2-3 tablespoons extra peanut butter in the microwave until runny. Drop a small dollop (about 1/2 teaspoon) on top of each brownie bite, then swirl gently with a toothpick or butter knife.
  7. Bake for 10-12 minutes, checking at 10 minutes. Edges should look set, centers still a tad glossy.
  8. Let bites cool in the pan for 5 minutes, then transfer to a wire rack. Enjoy warm for gooey texture or chill for firmer bites.

Notes

Do not overmix the batter for best fudgy texture. Swirl peanut butter gently for pretty ribbons. Start checking for doneness at 10 minutes—overbaking leads to dryness. For vegan, use flax eggs and plant-based protein powder. Store in airtight container at room temp for 3 days, refrigerate for up to a week, or freeze for 2 months.

Nutrition

Keywords: protein brownies, peanut butter swirl, healthy snack, gluten-free dessert, easy brownies, chocolate protein, mini brownies, lunchbox treat