Prepare recipe as directed, substituting a one-layer-size chocolate cake mix for white cake mix. Pour the mixture into an ice cream freezer. Freeze according to manufacturer's instructions. Stir 2/3 cup miniature chocolate pieces into the mixture before freezing overnight to ripen.
Birthday Cake Batter Ice Cream:
Prepare recipe as directed; pour the mixture into an ice cream freezer. Freeze according to the manufacturer's instructions. Stir 2 tablespoons colored sprinkles and, if desired, 1/2 cup miniature chocolate pieces, chopped nuts and/or coarsely chopped maraschino cherries into the mixture before freezing overnight to ripen.
370 calories; fat 26g; cholesterol 84mg; saturated fat 14g; carbohydrates 34g; protein 3g; vitamin a 874.6IU; vitamin c 0.6mg; sodium 198mg; calcium 80.8mg.