Mixing cupcake colors for rainbow cupcakes is easy! u003cstrongu003eFirstu003c/strongu003e: Choose how many colors you want to have in your cupcakes. u003cstrongu003eSecondu003c/strongu003e: Set out that many bowls and divide your cake batter among the bowls. u003cstrongu003eThirdu003c/strongu003e: Add your food coloring to each bowl and mix u003cstrongu003egentlyu003c/strongu003e until you've reached the desired color shade.