So, you've made brownies, but maybe you haven't made brownies then put peanut butter icing on them! its the best thing ever! :)
So start by making your favorite brownie recipe. While its baking (or at any time really) you should put together creamy peanut butter, powdered sugar, a few tablespoons of cream, and vanilla until you have your favorite icing concistancy. -then you ice your brownies and enjoy!!