1 box brownie mix 24 Oreo Cookies 1/2 c peanut butter Preheat oven to 350 degrees and line a 12 muffin cup baker with liners. Prepare brownie mix according to package directions. For each cup spread 1 t of pb over 2 Oreos and stack them on top of each other. Place stacks into the muffin cups. Spoon 2 T of brownie batter over oreos and let it run down the sides. Bake cookies and brownies for 18 to 20 minutes, until brownies are cooked through. Let cool completely then serve.