This peanut butter banana cake recipe is a delicious and satisfying dessert that combines the creaminess of peanut butter with the sweetness of bananas. To make this cake, you will need ripe bananas, flour, sugar, eggs, butter, peanut butter, baking powder, 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 dollop of whipped cream or a sprinkle of chopped peanuts on top.