Line a muffin tray with silicone or paper liners.
Spread about 1 tablespoon cookie dough into the bottom of each muffin cup. Make sure entire bottom is coated.
Place one Oreo on top of the cookie dough in each muffin cup.
Pour 2-3 tablespoon brownie batter on top of the Oreo.
Place in a preheated oven, 375, and bake for about 18-20 minutes.
Remove from oven and enjoy!!
