How to Make Rainbow Cake Recipe With Chocolate🌈Glossy Chocolate & Candy Topping💖By HT Mini Cakes
How to Make Rainbow Cake Recipe With Chocolate🌈Glossy Chocolate & Candy Topping💖By HT Mini Cakes is a medium Swiss recipe that serves 8. 350 calories per serving. Recipe by HT Mini Cakes on YouTube.
Prep: 45 min | Cook: 30 min | Total: 1 hr 45 min
Cost: $5.90 total, $0.74 per serving
Ingredients
- 4 pcs Large Eggs (room temperature)
- 1 cup Granulated Sugar (fine granules)
- 1 cup Whole Milk (room temperature)
- 1/2 cup Vegetable Oil (neutral flavor)
- 1 cup All-Purpose Flour (sifted)
- 2 Tbsp Corn Starch (sifted with flour)
- Assorted drops Food Coloring (gel or liquid, colors: red, orange, yellow, green, blue, purple)
- 1/2 cup Unsalted Butter (softened, for buttercream)
- 2 cups Powdered Sugar (sifted)
- 200 g Store‑Bought Fondant (pre‑colored white, cut into balls)
Instructions
Prepare the Baking Pan
Line the 9x13 inch pan with parchment paper, allowing excess to overhang for easy removal later.
Time: PT5M
Mix Wet Ingredients
In a mixing bowl, whisk together the eggs, granulated sugar, milk, vegetable oil, and vanilla extract (if using) until light and fluffy, about 2 minutes.
Time: PT5M
Add Dry Ingredients
Sift the flour and corn starch together, then fold into the wet mixture until just combined. Do not over‑mix.
Time: PT5M
Divide and Color Batter
Divide the batter into six equal portions in separate bowls. Add a few drops of food coloring to each bowl to create red, orange, yellow, green, blue, and purple batters. Stir gently until color is uniform.
Time: PT10M
Bake the Colored Layers
Pour each colored batter one at a time into the prepared pan, spreading evenly. Bake at 350°F for 5‑6 minutes per layer, or until a toothpick comes out clean. Remove each layer and let cool on a rack before adding the next.
Time: PT30M
Temperature: 350°F
Cool and Trim Layers
Once all six layers are baked and cooled, use a serrated knife to trim the edges so they are uniform rectangles.
Time: PT5M
Make Buttercream Frosting
Beat softened butter until creamy. Gradually add sifted powdered sugar, beating until light and fluffy. Add a splash of milk if needed to reach spreading consistency.
Time: PT10M
Assemble the Roll Cake
Place a sheet of parchment over a clean work surface. Spread a thin layer of buttercream over the first colored sponge, then roll tightly from the short side using the parchment to help. Repeat for each layer, stacking the rolled layers on top of each other to form a tall, multicolored log.
Time: PT15M
Frost the Cake
Cover the entire roll cake with a thin “crumb coat” of buttercream, chill for 10 minutes, then apply a final smooth layer of buttercream. Use a spatula to create a sleek finish.
Time: PT10M
Prepare Fondant Balls
Roll out the white fondant to about 3 mm thickness. Use a small round cutter (about 2 cm diameter) to cut balls. Place balls on a parchment sheet and chill for 5 minutes to firm.
Time: PT10M
Decorate
Arrange the chilled fondant balls in diagonal lines across the top of the cake, creating a rainbow pattern. Add any additional sprinkles or edible glitter if desired.
Time: PT5M
Nutrition Facts
- Calories
- 350
- Protein
- 4 g
- Carbohydrates
- 55 g
- Fat
- 12 g
- Fiber
- 1 g
Dietary info: Vegetarian
Allergens: Eggs, Milk, Gluten, Soy (if using soy‑based oil)
Last updated: April 13, 2026








