1 1/4 cups unsweetened cocoa powder
1 teaspoon salt
1 teaspoon baking powder
1 Tablespoon (3 teaspoons) vanilla extract
1 cup (2 sticks) butter
2 1/4 cups sugar
1 1/2 cups all purpose flour
In a large bowl, add 4 eggs, and beat with cocoa, salt, baking powder, and vanilla. Stir until fully combined and smooth.
In the microwave, melt butter. When melted, add sugar, and stir to combine.
Add warm butter/sugar mixture to the egg/cocoa mixture, stirring until smooth.
Add the flour to batter and stir until fully incorporated.
Spread batter into prepared pan, and smooth as needed. Press Oreos into the batter to line pan.
Bake brownies about 10 minutes. Top with Pillsbury Reese’s Pieces cookie dough. Flatten each scored cookie a bit and lay on top of the oreos. Return to the oven for about 20-25 minutes until cooked through.