9 large whoopie pies.

Cake:
1/2 cup solid vegetable shortening
1 cup firmly packed brown sugar
1 egg
1/4 cup cocoa
2 cups all-purpose flour
1 teaspoon baking powder
1 teaspoon baking soda
1 teaspoon salt
1 teaspoon vanilla extract
1 cup milk

Filling:
1 cup solid vegetable shortening*
1 1/2 cups powdered sugar
2 (7 oz.) containers Solo Marshmallow Creme
1 1/2 teaspoons vanilla extract

* Butter may be substituted for all or part of the vegetable shortening, although traditional Whoopie Pies are made with vegetable shortening only.

Preheat oven to 350° F. Lightly grease baking sheets.

In a large bowl, cream together shortening, sugar, and egg. In another bowl, combine cocoa, flour, baking powder, baking soda, and salt.

In a small bowl, stir the vanilla extract into the milk. Add the dry ingredients to the shortening mixture, alternating with the milk mixture; beating until smooth.

Drop batter by the 1/4 cup (to make 18 cakes) onto prepared baking sheets. With the back of a spoon spread batter into 4-inch circles, leaving approximately 2 inches between each cake. Bake 15 minutes or until they are firm to the touch. Remove from oven and let cool completely on a wire rack.

Make Whoopie Pie Filling.
In a medium bow, beat together shortening, sugar, and  2 (7 oz.) containers Solo Marshmallow Creme ; stir in vanilla extract until well blended.

When the cakes are completely cool, spread the flat side (bottom) of one chocolate cake with a generous amount of filling. Top with another cake, pressing down gently to distribute the filling evenly. Repeat with all cookies to make 9 pies. Wrap whoopie pies individually in plastic wrap, or place them in a single layer on a platter (do not stack them, as they tend to stick).

To freeze, wrap each whoopie pie in plastic wrap. Loosely pack them in a plastic freezer container and cover. To serve, defrost the wrapped whoopie pies in the refrigerator.