Diet Soda Cupcakes!
For Chocolate Cake, use diet root beer, diet cherry soda, diet cola (my favorite is Devil's Food and Diet Root Beer).
For Yellow Cake, use diet lemon-lime soda, diet cream soda, diet orange soda.
Here is the recipe:
Diet Soda Cupcakes
1 box (18.25 ounces) cake mix
1 can (12 ounces) diet soda
24 foil muffin liners (much better than paper)
In a large bowl, combine cake mix and diet soda with a whisk. Make sure you mix well and no lumps remain.
Line a 24 muffin cup pan with liners. Spoon batter into liners. Bake according to package directions for cupcakes, but check at the earliest time. To check for doneness, stick a toothpick into a cupcake and some crumbs should cling to the toothpick. Depending on your oven, you may need to add 5 minutes to your baking time.
For best results, make them the night before and chill in the refrigerator until ready to serve.
(For those of you counting points, each cupcake is 2 points.)