The carbonation in the diet soda makes the cake rise and this cake does not need frosting. Chill thoroughly for easier cutting/serving and add dollop of light whipped topping.
One standard cake mix, any flavor
one 12-oz can diet soda
No nutrition information available
Spray a 9x13 pan with non-stick spray. Preheat oven to 350 degrees.
Combine the cake mix and diet soda and mix until well blended. (Batter will be thin.) Pour into prepared pan and bake approximately 22-24 min.