Rainbow Cupcakes are colorful baked treats that feature layers of vibrant cake batter, typically made with vanilla or white cake. Each layer is dyed with different food coloring, creating a striking rainbow effect when the cupcakes are cut open. They are often topped with fluffy buttercream frosting and can be decorated with sprinkles or other fun toppings. These cupcakes are popular for celebrations like birthdays and parties due to their eye-catching appearance. Making Rainbow Cupcakes involves mixing the batter, dividing it into portions, and adding food coloring before layering it in cupcake liners. The result is a delightful and visually appealing dessert.