Seven brightly colored layers make this rainbow cake the stuff of birthday dreams. When you tint the layers, add more food coloring rather than less, since the color lightens as it bakes. Slideshow: More Cake Recipes
The cake layers can be prepared through Step 4, wrapped in plastic and kept at room temperature overnight or wrapped in plastic wrap and foil and frozen for up to 2 weeks. The finished cake can be wrapped in plastic and refrigerated for up to 4 days.