In this tutorial, we learn how to make rainbow cupcakes. First, you will need to make the batter and pour it into six different bowls evenly. After this, drop different colors of food coloring into each of the bowls to make them all different colors. Once these are mixed together, you will have all the colors of the rainbow! Drop a small amount of each of the colors into the muffin liners in a baking dish. When they are full, bake these in the oven until they are golden brown at the top and you can poke a toothpick through and it comes out clean!