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

Instruction