Layered brownies with a cookie base, Oreo center, and rich chocolate topping.
1/2 cup unsalted butter, softened
1/2 cup brown sugar
1/4 cup granulated sugar
1 large egg
1 teaspoon vanilla extract
1 1/4 cups all-purpose flour
1/2 teaspoon baking soda
1/4 teaspoon salt
3/4 cup chocolate chips
20 Oreo cookies
1/2 cup unsalted butter, melted
1 cup granulated sugar
2 large eggs
1 teaspoon vanilla extract
1/2 cup unsweetened cocoa powder
1/2 cup all-purpose flour
1/4 teaspoon salt
Cool fully for clean layers.
Do not overbake for a fudgy texture.