Method:

• Heat oven to 350ºF (325ºF for dark nonstick pans). Place paper baking cup in each of 24 regular-size muffin cups. Make and bake cake mix as directed on box for 24 cupcakes, using water, oil and eggs. Cool in pan 10 minutes; remove from pan to cooling rack. Cool completely, about 30 minutes.
• With end of round handle of wooden spoon, make deep, 1/2-inch-wide indentation in center of each cupcake, not quite to the bottom (wiggle end of spoon in cupcake to make opening large enough). In small bowl, mix 1 cup vanilla frosting and the marshmallow creme. Spoon into small resealable food-storage plastic bag. Cut 3/8-inch tip off 1 bottom corner of bag. Insert tip of bag into each cupcake and squeeze bag to fill.
• In small microwavable bowl, microwave chocolate frosting, chocolate chips and corn syrup uncovered on High 30 seconds; stir. Microwave 15 to 30 seconds longer; stir until smooth. Dip top of each cupcake in frosting. Let stand until frosting is set.
• Spoon 3 tablespoons vanilla frosting into small resealable food-storage plastic bag. Cut tiny tip off 1 bottom corner of bag. Pipe initials or a squiggle shape on each cupcake.