Preheat oven to 350°F (175°C) and line an 8x8 inch baking pan with parchment paper.
Whisk together collagen peptides, protein powder, cocoa powder, baking powder, and salt in a large bowl.
In a separate bowl, combine almond butter, eggs, sugar-free syrup, almond milk, and vanilla extract until smooth.
Fold the dry ingredients into the wet ingredients until a thick, uniform batter forms.
Stir in the sugar-free dark chocolate chips.
Spread the batter evenly into the prepared baking pan using a spatula.
Bake for 22 to 25 minutes until the edges are firm and the center is set.
Cool completely in the pan for at least 30 minutes before slicing into 9 squares.