Buckeye Brownies

Preparation

1. Preheat oven to 350 degrees.
2. In a large bowl, combine the butter, sugar, eggs, and vanilla. Add in the cocoa powder, flour, salt, and baking powder. Pour brownie batter into 8x8 baking pan. Bake brownies for 25-30 minutes.
3. Let the brownies cool. Once the brownies have cooled, remove the brownies from the pan. Keep the brownies as one large piece rather than cutting them. Note that you don't need to remove the brownies from the pan until the end but I prefer to remove them at this point so it's easier to cut into them later on. 
4. In a medium-sized bowl, combine the powdered sugar, ½ cup butter, and peanut butter to make the peanut butter layer. Mix well. Once the brownies are cool, spread the peanut butter mixture evenly over the brownies.
5. To make the chocolate layer, melt the 6 tbsp butter and chocolate chips. You can do this in the microwave or in a saucepan over low heat. Stir the chocolate. Spread the melted chocolate over the brownies. Let the chocolate set - I put the brownies in the fridge for a bit. Once the chocolate layer is solid, then you can cut into the brownies.