Whoopie Pie Filling

By KSmitherman

Ingredients

• 1 cup (2 sticks) unsalted butter, preferably organic, room temperature
• 2 cups sifted confectioners' sugar
• 1 jar (7 1/2 ounces) marshmallow Fluff
• 2 teaspoons pure vanilla extract,

Preparation

Step 1

In the bowl of an electric mixer fitted with the paddle attachment, cream together butter and sugar until pale and fluffy, about 3 minutes. Add Fluff and vanilla and continue mixing until well combined.