My Nutella Frosting

 1/2 cup (1 stick) unsalted butter, at room temperature

1 cup smooth Nutella

1 (8-ounce) package cream cheese
4 cups powdered sugar
1 tablespoon heavy cream (or milk)

Beat the butter until smooth.  Add the cream cheese, and continue to beat until smooth and fully combined with the butter.  Add the peanut butter and beat until well combined. Slowly add the powdered sugar and continue to mix until the frosting is smooth. Add in the cream, and beat another 30 seconds.  Frost cupcakes.