package (18-¼ ounces) devil's food cake mix
cup confectioners' sugar
cup marshmallow creme
teaspoon vanilla extract
cans (16 ounces each) chocolate frosting
Prepare and bake cake according to package directions for cupcakes, using paper-lined muffin cups. Cool for 10 minutes before removing from pans to wire racks to cool completely. Meanwhile in a large mixing bowl, cream shortening and sugar until light and fluffy. Add marshmallow creme and vanilla and mix well. Cut a small hole in the corner of a pastry or plastic bag; insert a very small tip. Fill with cream filling. Push the tip through the bottom of paper liner to fill each cupcake. Frost with chocolate frosting.