Put five different food coloring’s – red, yellow, blue, purple and green into five different bowls filled with a basic cupcake mixture. A dollop of each color added to the mixes in a cupcake holder gives you bright cheerful looking cupcakes that are different and fun cupcakes. When baked, top them with a frosting of vanilla or cream cheese. These easy to make, rainbow cupcakes will be enjoyed by all the little tots at the party. All the children will rush to eat as many as they can of these yummy cupcakes.
Source Picky Palate