This peanut butter banana cake recipe is perfect for those who love the combination of peanut butter and bananas. It is made with peanut butter, which gives the cake a nutty and creamy flavor. The cake is also moist and fluffy, thanks to the ripe bananas. To make this cake, you will need flour, baking powder, baking soda, salt, ripe bananas, sugar, eggs, butter, peanut butter, and vanilla extract. Mix all the ingredients together, pour the batter into a greased cake pan, and bake in the oven for 35-40 minutes. Serve with a drizzle of melted peanut butter or a sprinkle of chopped peanuts.