Whoopie Pies

Preheat oven to 425°.

Prepare the cake mix as directed on the box. Add the extra flour, ½ cup at a time, and stir after each addition until the batter thickens to a consistency similar to cookie dough.

Spoon batter, a tablespoon at a time, about 2 inches apart, onto a greased cookie sheet and bake for 6-8 minutes, until the tops of the cakes spring back when pressed.

Let the cakes cool completely before assembling.

To make the filling, in a medium bowl, beat the butter until smooth. Add the confectioner’s sugar and mix until smooth. Add the fluff and vanilla extract and mix until combined.

Match cakes up into similarly-sized pairs. Spoon a teaspoon (or more if you like) of filling onto each bottom cake and cover with top.

Eat immediately or they will disappear!