Preheat oven to 350.
Mix together dry brownie ingredients.
Add in wet ingredients.
Mix well.
Line 12 muffin tins with cupcake liners.
Press one ball of gluten free sugar cookie dough into each liner.
Press one Goodie Girl Birthday Cake cookie into each liner.
Top with brownie mixture.
Add sprinkles if desired.
Bake 30-35 minutes or until cooked through.