Chocolate Cupcakes With White Filing Recipe
Ingredients For the cupcakes: 1 1/4 cup cake flour 2/3 cup Dutch-process cocoa powder 1 tsp. baking powder 1/2 tsp. baking soda 1/2 tsp. salt 4 large eggs, separated and at room temperature 2/3 cup vegetable oil 1 1/4 cup sugar 1/4 cup water For the filling: 6 tbsp. unsalted butter, softened 1 1/2 cups confectioners’ sugar 3/4 cup Marshmallow Fluff 1 1/2 tbsp. plus 1 tsp. heavy cream 1/2 tsp vanilla...