Sprinkle your frosted cake very generously with a layer of the rainbow sprinkles. Now you are going to roll your cake roll ...

you need a box of French vanilla cake mix, three large eggs at ... Pull out the cupcakes and allow to cool, before frosting.

Leftover cake/cupcakes Leftover frosting Whipped cream Chocolate syrup More from Lifestyle When you make a cake (like this rainbow cake), cupcakes, or really, any sort of baked treat, often there ...