Cook's Note: Try this with yellow cake mix and diet cream soda!
Preheat oven to 350 degrees F.
Combine ingredients in a large bowl. Whisk thoroughly and transfer to a baking pan sprayed with nonstick spray; bake in the oven until a knife inserted into the center comes out clean. (Refer to cake-mix box for pan size and approximate bake time.)
PER SERVING (1 piece, 1/12th of cake): 171 calories, 3.5g fat, 301mg sodium, 34g carbs, <0.5g fiber, 19g sugars, 1.5g protein