All I have to say is YUMMY! Smooth, creamy and peanut buttery! I always use Jif when I have to add peanut butter to anything! I love adding this topping to cakes, cupcakes, cheesecakes, etc. I love peanut butter!
Cream butter and peanut butter together in the bowl of an electric mixer. Add powdered sugar with mixer on low speed and gradually add milk and vanilla extract. Mix until frosting is smooth. If too thick, add more milk; if too thin, add more sugar.