Unicorn Birthday Cake
This enchanting Unicorn Birthday Cake swirls color, sparkle, and sweetness into every slice. With soft vanilla layers, fluffy buttercream frosting, and whimsical rainbow details, it’s the ultimate showstopper dessert for magical celebrations — loved by kids and adults alike!
Equipment
- Two 8-inch Round Cake Pans
- Mixing Bowls
- Electric Mixer
- Spatula
- Cooling Rack
Ingredients
- 2 1/2 cups all-purpose flour
- 2 1/2 tsp baking powder
- 1/2 tsp salt
- 1 cup unsalted butter softened
- 1 3/4 cups granulated sugar
- 4 large eggs
- 1 tbsp vanilla extract
- 1 cup whole milk
- food coloring pink, blue, purple, yellow for rainbow layers
- 3 cups buttercream frosting store-bought or homemade
- edible glitter, sprinkles, or gold sugar for decoration
- fondant unicorn horn and ears optional
Instructions
- Preheat oven to 350°F (175°C). Grease and line two 8-inch round cake pans.
- In a bowl, whisk together flour, baking powder, and salt.
- In another large bowl, beat butter and sugar until light and fluffy. Add eggs one at a time, then mix in vanilla extract.
- Gradually add the dry ingredients, alternating with milk, until the batter is smooth.
- Divide batter into four bowls and tint each with food coloring for rainbow layers.
- Pour each color in alternating patterns into pans for a marbled effect, or bake separate layers if desired.
- Bake for 25–30 minutes, or until a toothpick inserted in the center comes out clean. Cool completely.
- Frost with buttercream, smoothing the sides and swirling pastel colors on top.
- Decorate with edible glitter, sprinkles, and fondant unicorn features for a magical finish.
Notes
Store leftover cake covered in the refrigerator for up to 4 days, or freeze slices for up to 2 months. For a professional look, apply a crumb coat and chill before the final frosting layer. Decorate with rainbow swirls, gold accents, or pastel buttercream rosettes for added charm.