Ingredients
The following ingredients have 18 Servings
- 16.25 ounces white cake mix (1 box)
- 3.4 ounce instant vanilla pudding mix (1 box)
- 3 large eggs
- ¾ cup sour cream
- ¾ cup vegetable oil (or canola)
- ½ cup water
- 1 ½ cups Fruity Pebbles cereal (divided)
- 1 cup unsalted butter (softened)
- 4 cups powdered sugar
- 4 to 6 tablespoons milk
- 1 tablespoon key lime juice