This nostalgic dessert is an easy and classic whoopie pie recipe made of soft, moist chocolate round cakes sandwiched with a sweet, creamy, fluffy filling. Tastes just like the ones we ate as kids!
In the bowl of an electric mixer fitted with the paddle attachment, cream butter and sugar until light and fluffy, about 3 minutes. Add egg, and vanilla and mix until combined, then mix in buttermilk. Slowly add dry ingredients, and mix just until combined.