Only in the South Can You Get a "Sun Drop Cake Recipe"! The old time Sundrop used to come in a glass bottle and you could see bits of citrus at the bottom. We also have Sundrop ice cream here in our local stores.
Grape pop and box of vanilla cake mix. Frost as desired. other possible combos - white cake and orange soda choc cake cherry dr pepper spice cake root beer lemon cake with ginger ale, or orange strawberry cake with strawberry or cream soda