Preheat the oven to 350F (175C) and line the baking pan with parchment paper.
Melt the butter (start with 20 seconds in the microwave). Set it aside to cool.
Mix the dry ingredients, and set aside.
1 cup collagen peptides, ¾ cup coconut sugar, ½ cup alkalized cocoa, 6 tablespoons gluten free flour, ½ teaspoon baking powder, ½ teaspoon salt
Mix the wet ingredients.
¼ cup butter, 4 large egg whites, ¼ cup coffee, brewed and cooled, 2 teaspoons vanilla extract
Add the wet ingredients to the dry ingredients, and mix well.
Fold in the chocolate chips (if using).
¼ cup sugar free chocolate chips
Pour batter into parchment-lined pan.
Bake for 18-20 minutes, until the edges are set and the center is almost set.
Remove from oven and let cool on cooling rack.
Once cool, cut and enjoy! (Tip: They are easiest to cut after being refrigerated.)
Notes
Store these in an airtight container in the refrigerator.This recipe was created for collagen protein (collagen peptides), and I do not recommend using other types of protein in this recipe.Recipe Variations:Go nuts! Add ¼ cup of your favorite nuts, chopped, for an added level of flavor and texture. I love pecans, so that would be my recommendation here.Brown butter makes everything better! Instead of just melting the butter, brown the butter for a richer, nuttier butter flavor.This recipe was adapted from Nutritionist Mom's collagen brownie recipe. The nutrition below does not include the sugar free chocolate chips. With them, 1/12 of the recipe has: Calories: 157kcal | Carbohydrates: 19g | Protein: 10g | Fat: 6g | Fiber: 2g | Sugar: 12g | Erythritol: 2g.