PREPARATION:

1. Preheat oven to 350°F. Grease or paper-line 24 standard (2-1/2-inch) muffin pan cups.
2. Prepare cake mix according to package directions with water, eggs and oil. Spoon batter into prepared muffin cups, filling 2/3 full.
3. Bake 20 to 25 minutes or until toothpick inserted into centers comes out clean. Cool in pans on wire racks 20 minutes. Remove cupcakes to racks; cool completely.
4. Spread 1-1/2 to 2 tablespoons frosting over each cupcake. Fit round decorating tip onto tube of icing. Squeeze 5 dots icing over each cupcake. Swirl toothpick through icing and frosting in continuous motion to make marbleized pattern or heart shapes.