2 1⁄4 cups all-purpose flour
1⁄2 cup unsweetened cocoa powder
1 teaspoon baking soda
2 teaspoons cream of tartar
1 teaspoon salt
2⁄3 cup vegetable shortening
1 1⁄4 cups granulated sugar
2 large eggs
2 teaspoons vanilla
1 cup milk
1⁄2 cup (1 stick) unsalted butter, softened
1 cup confectioners’(powdered) sugar
2 cups marshmallow crème
1 teaspoon vanilla
1. Preheat oven to 350°F. Grease 2 large
baking sheets; set aside.
2. In a bowl, whisk together the flour, cocoa, baking soda, cream of tartar, and salt; set aside. In the bowl of an electric mixer, cream together the shortening and granulated sugar. Beat in the eggs and the 2 teaspoons vanilla. Alternately add the flour mixture and milk, beating until fully combined.
3. Drop dough by tablespoons 2 inches apart onto prepared baking sheets. Bake for 8 to 10 minutes or until darker around the edges and firm to the touch. Transfer cakes to a wire rack to cool completely.
4. For the filling, beat together the butter and confectioners’ sugar. Beat in the marshmallow crème and the 1 teaspoon vanilla until smooth. Spoon about 1 tablespoon filling onto the bottom of a cake. Press the bottom of a second cake against filling to make a sandwich. Repeat with remaining cakes and filling. To store, layer whoopie pies between sheets of waxed paper in an airtight container and refrigerate for up to 2 days.