Sprinkles is giving one lucky customer $100 worth of cupcakes.
The store's signature cupcake -- the sprinkle cupcake -- will be loaded with extra sprinkles on Dec. 15 in celebration of National Cupcake Day.
One sprinkle cake, however, will have a $100 Sprinkles certificate baked inside.
Dubbed "the golden cupcake," the winning cake will also be filled with gold sprinkles.
The promotion will be held in Sprinkles stores nationwide.