This post is sponsored by the National Peanut Board. I received compensation, but all opinions and content are my own. Click here for even more delicious peanut butter recipes for every occasion. Today's post is a peanut butter celebration cake. It's a cake fit for any celebration, but also a celebration of peanut butter itself! My family and I LOVE peanut butter! It's a staple in our home, and since Father's Day is also 'round the corner, I thought this recipe would be the ideal celebratory treat to bake for dad!