Step 2: Rainbow Swirl Cake Step 2
Use food dye to color your cake batter. If you use gel or paste then you will only need 1 drop per section for a brilliant, deep color. I used 6 colors for this cake. The possibilities are endless!
Drop your batter into the pan(s) one color at a time and bake as you normally would. You can give the batter a little swirl with the tip of a knife if desired but it isn't necessary.