this is a brownie that was made in a mini angel food cake pan, or thats what it looks like. i melted a little bit of creamy pb and marbled it into the pan after putting the brownie mix into the pan. i also made some in a muffin pan too. these turned out yummy. i love peanut butter and chocolate. the brownie stuck to the pan a little bit, but i believe i tried to get it out before it was ready. i am going to try it again later and wait longer. but it was still great tasting.