Whoopie Pies
Whoopie Pies Makes 17 Ingredients Cookies: 2 cups (283g) unbleached all-purpose flour 1/2 cup (45g) unsweetened cocoa powder 1 tsp baking soda 1/2 tsp salt 1 cup packed (200g) light brown sugar 1/2 cup (120ml) buttermilk 1/2 cup (120ml) vegetable oil 1 large egg 1 1/2 tsp vanilla extract 1/2 cup (120ml) hot water Filling: 8 Tbsp (113g) salted butter, at room temperature 6 Tbsp (85g) unsalted butter, at room temperature 2 1/4 cups (270g) powdered sugar 1 tsp vanilla extract 10 oz. marshmallow fluff Directions: Set oven …