Custrd is out on the App Store — Download it free →
Back to recipes

15-Min Rainbow Layer Cake

Layer store-bought vanilla cake or pound cake with colorful frosting and whipped cream for an Instagram-worthy dessert in minutes. Pairs perfectly with coffee for brunch or a quick celebration.

Total time
15 min
Servings
8
Calories
520
Protein
4g
15-Min Rainbow Layer Cake
celebratoryindulgentamericanvegetarianfluffycreamysoftDessert

Ingredients

6 items — tap to check off

Missing one? Custrd suggests a swap that works.

Open the app

Instructions

  1. Step 1

    Beat softened butter and powdered sugar until fluffy, about 2 minutes.

  2. Step 2

    Divide frosting into 6 bowls. Add a different food coloring drop to each bowl and stir until vibrant.

  3. Step 3

    Level each cake layer with a serrated knife so they sit flat. Place the first layer on a cake board or plate.

  4. Step 4

    Spread one stripe of each colored frosting across the first cake layer in rainbow order. Top with the second layer.

  5. Step 5

    Whip heavy cream with sugar until stiff peaks form, about 2 minutes.

  6. Step 6

    Spread whipped cream over the top and sides, then slice and serve with coffee.

Tools you’ll need

  • electric mixer
  • 6 small bowls
  • serrated knife
  • offset spatula or butter knife
  • cake board or serving plate
  • whisk or mixer

Cook smarter

Get matched recipes for what’s in your fridge

Custrd is a free iOS app that finds real recipes from the ingredients you already have. No more grocery-list aspirations.