1 package white cake mix (regular size) 
1 cup lemon-lime soda 
3 large egg whites, room temperature 
1/4 cup canola oil 
1 package (3 ounces) watermelon gelatin 
2 drops watermelon oil, optional 
FROSTING: 
2 cups butter, softened 
6 cups confectioners' sugar 
1 package (3 ounces) watermelon gelatin 
5 to 6 tablespoons lemon-lime soda 
15 drops red food coloring 
3 tablespoons miniature semisweet chocolate chips
1. Preheat oven to 350°. Line 24 muffin cups with paper liners. In a large bowl, combine cake mix, soda, egg whites, canola oil, gelatin and if desired, watermelon oil; beat on low speed 30 seconds. Beat on medium speed 2 minutes. Transfer to prepared pans. Bake until a toothpick inserted in center comes out clean, 18 to 21 minutes. Cool in pans 10 minutes before removing to wire racks to cool completely. 
2. For frosting, in a large bowl, combine butter, confectioners' sugar, gelatin, soda and food coloring; beat until smooth. Frost cupcakes. Sprinkle with chocolate chips. Store in the refrigerator.
Prize Winning Recipe
TOTAL TIME: Prep: 30 min. Bake: 20 min. + cooling 
YIELD: 2 dozen. 
If you are not going to pipe the frosting, you can reduce the amount of frosting by half.
Nutrition Facts
1 cupcake: 385 calories, 19g fat (11g saturated fat), 41mg cholesterol, 282mg sodium, 54g carbohydrate (46g sugars, 1g fiber), 2g protein.