Found this recipe online.... Was a little skeptical at first, but it turned out soooo good - and so easy!
1 can Sprite Zero
1 package lemon cake mix
Combine cake mix & can of sprite. (Use a large bowl because the sprite bubbles up quite a bit. Fill cupcake tin (with liners) 2/3 full. Bake according to package instructions (should be 350 degrees for 18-20 minutes or so).
Can top with cool whip free and add lemon extract - or dust with powdered sugar. I used vanilla icing because I was making these for family - to take with me to Christmas at Grandma's house tomorrow.
Nutrition information is with icing.
Not too bad for a sweet treat!!