Line a baking sheet with parchment paper and set aside.
Blend cottage cheese, protein powder, cocoa powder, nut butter, maple syrup, and vanilla in a blender or food processor until smooth and thick.
Transfer to a bowl and stir in almond flour until the mixture is firm enough to scoop. Fold in chocolate chips if using.
Scoop and roll into 12–16 brownie batter bites. Place the dough onto the parchment lined baking tray and chill for at least 30 minutes before serving. If your dough is really soft, then chill the bowl for about 10–15 minutes first before scooping.
Notes
If your house is like mine, rolling them smaller helps stretch the batch. I’ll often make 16 mini bites so everyone gets one and the older kids can grab seconds.