3 (1 ounce) squares unsweetened chocolate, melted and cooled
1 1/2 tablespoons butter flavored shortening
1/4 cup half-and-half, or as needed
Place the marshmallow cream, two-thirds of the confectioners' sugar, melted chocolate, shortening, and half of the half-and-half in a mixing bowl. Beat with an electric mixer until smooth. Alternately add remaining confectioners' sugar and half-and-half until desired level of sweetness and consistency is attained.