10-Minute Rainbow Cake Slice
Layer store-bought vanilla cake, whipped cream, and food coloring in a glass to build a viral rainbow effect in minutes. Serve with black coffee for the perfect pairing.
- Total time
- 10 min
- Servings
- 4
- Calories
- 420
- Protein
- 4g
Ingredients
- 1 whole cake (8–10 oz) store-bought vanilla layer cake (or pound cake)
- 1.5 cups heavy whipping cream
- 3 tbsp powdered sugar
- 1 set food coloring (gel or liquid, assorted colors)
- ½ tsp vanilla extract
- 8 oz per serving black coffee (brewed, any strength)
Instructions
- 1
Cut the cake into 1/2-inch cubes — you'll need roughly 2 cups total.
- 2
Pour heavy cream into a bowl with powdered sugar and vanilla; whip until soft peaks form, about 90 seconds by hand or 60 seconds with a mixer.
- 3
Divide the whipped cream into 5 small bowls. Add 2–3 drops of food coloring (red, orange, yellow, green, blue) to each bowl and stir until uniform.
- 4
In a tall glass or jar, layer cake cubes and colored whipped cream in rainbow order, starting with red at the bottom.
- 5
Repeat layers until glass is full, ending with a dollop of colored cream on top.
- 6
Serve immediately with a hot cup of black coffee on the side.
Tools you’ll need
- serrated knife
- 5–6 small bowls
- whisk or electric mixer
- tall drinking glass or dessert jar (10–12 oz)
- spoon
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