Happy Birthday Cake Slice

Featured in: Sweet Memory Desserts

This delightful vanilla sponge combines moist layers with smooth buttercream frosting for a celebratory treat. The batter blends flour, sugar, butter, eggs, and vanilla, baked to a golden finish. Once cooled, the sponge is sliced and filled with rich buttercream and covered with bright sprinkles for a joyful appearance. Ideal for sharing at gatherings, this treat balances sweetness and texture with simple, fresh ingredients and easy-to-follow steps.

Updated on Thu, 04 Dec 2025 11:28:00 GMT
Happy Birthday Cake slice, a delightful image showcasing a frosted slice with vibrant sprinkles. Save to Pinterest
Happy Birthday Cake slice, a delightful image showcasing a frosted slice with vibrant sprinkles. | recipesforevers.com

A festive, moist vanilla sponge cake layered with creamy buttercream and topped with colorful sprinkles—a joyful treat perfect for any celebration.

This cake was the highlight of our family birthdays, always bringing smiles and happiness to the table.

Ingredients

  • For the Sponge Cake: 1 2/3 cups (210 g) all-purpose flour, 1 cup (200 g) granulated sugar, 1/2 cup (115 g) unsalted butter softened, 3 large eggs at room temperature, 1/2 cup (120 ml) whole milk, 2 tsp baking powder, 1/2 tsp salt, 1 tbsp pure vanilla extract
  • For the Buttercream Frosting: 1 cup (225 g) unsalted butter softened, 3 cups (360 g) powdered sugar sifted, 2 tbsp whole milk, 1 tsp pure vanilla extract, Pinch of salt
  • For Decoration: 1/4 cup (40 g) colorful sprinkles

Instructions

Step 1:
Preheat the oven to 350°F (175°C). Grease and line an 8-inch (20 cm) round cake pan with parchment paper.
Step 2:
In a large bowl, cream together the butter and sugar until light and fluffy, about 3 minutes.
Step 3:
Beat in the eggs, one at a time, mixing well after each addition. Stir in the vanilla extract.
Step 4:
In a separate bowl, whisk together the flour, baking powder, and salt.
Step 5:
Add the dry ingredients to the wet mixture in three parts, alternating with the milk, beginning and ending with the flour. Mix until just combined.
Step 6:
Pour the batter into the prepared cake pan and smooth the top.
Step 7:
Bake for 28-32 minutes or until a toothpick inserted in the center comes out clean.
Step 8:
Let the cake cool in the pan for 10 minutes then turn out onto a wire rack to cool completely.
Step 9:
For the frosting, beat the butter until creamy. Gradually add powdered sugar milk vanilla and salt beating until smooth and fluffy.
Step 10:
Once the cake is completely cool slice it horizontally to create two layers. Spread frosting between the layers and over the top and sides.
Step 11:
Decorate with colorful sprinkles. Slice and serve.
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Our family always gathers around this cake and shares stories while enjoying every bite together.

Required Tools

8-inch (20 cm) round cake pan Electric mixer Mixing bowls Rubber spatula Wire rack Serrated knife

Allergen Information

Contains eggs milk wheat (gluten) and dairy Check all packaged decorations for potential allergens

Nutritional Information

Calories 430 Total Fat 21 g Carbohydrates 57 g Protein 4 g per serving

Moist Happy Birthday Cake slice, layered with luscious buttercream, ready for a delicious bite. Save to Pinterest
Moist Happy Birthday Cake slice, layered with luscious buttercream, ready for a delicious bite. | recipesforevers.com

This delightful cake promises a perfect celebration treat that your guests will adore.

Recipe FAQs

What type of flour is best for this cake?

All-purpose flour provides the right structure and texture to create a soft, moist sponge perfect for layering.

How can I ensure the cake is moist?

Carefully measuring ingredients and not overbaking helps retain moisture. Incorporating butter and milk also adds tenderness.

Can I substitute the buttercream frosting?

Yes, cream cheese frosting or whipped cream can be used for a different flavor and lighter texture.

How do colorful sprinkles affect the taste?

They add a subtle crunch and visual appeal without altering the vanilla richness of the cake.

Is it necessary to layer the cake?

Layering the cake with frosting adds moisture and flavor depth, but serving it as a single layer is also enjoyable.

Happy Birthday Cake Slice

Festive vanilla sponge layered with buttercream and topped with colorful sprinkles.

Prep Duration
25 minutes
Time to Cook
30 minutes
Complete Duration
55 minutes

Recipe Type Sweet Memory Desserts

Complexity Medium

Cuisine International

Makes 8 Portions

Dietary Info Meatless

What You Need

Sponge Cake

01 1 2/3 cups all-purpose flour
02 1 cup granulated sugar
03 1/2 cup unsalted butter, softened
04 3 large eggs, room temperature
05 1/2 cup whole milk
06 2 teaspoons baking powder
07 1/2 teaspoon salt
08 1 tablespoon pure vanilla extract

Buttercream Frosting

01 1 cup unsalted butter, softened
02 3 cups powdered sugar, sifted
03 2 tablespoons whole milk
04 1 teaspoon pure vanilla extract
05 Pinch of salt

Decoration

01 1/4 cup colorful sprinkles

Directions

Step 01

Preheat oven and prepare pan: Preheat the oven to 350°F. Grease and line an 8-inch round cake pan with parchment paper.

Step 02

Cream butter and sugar: In a large bowl, beat the butter and sugar together until light and fluffy, about 3 minutes.

Step 03

Add eggs and vanilla: Incorporate the eggs one at a time, mixing well after each addition, then stir in the vanilla extract.

Step 04

Combine dry ingredients: Whisk the flour, baking powder, and salt in a separate bowl until evenly mixed.

Step 05

Mix batter: Add the dry ingredients to the wet mixture in three parts, alternating with milk, beginning and ending with flour. Mix just until combined.

Step 06

Bake the cake: Pour the batter into the prepared pan and smooth the surface. Bake for 28 to 32 minutes until a toothpick inserted in the center comes out clean.

Step 07

Cool the cake: Allow the cake to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.

Step 08

Prepare buttercream frosting: Beat the butter until creamy. Gradually add powdered sugar, milk, vanilla, and salt, beating until smooth and fluffy.

Step 09

Assemble and frost: Slice the cooled cake horizontally to create two layers. Spread frosting between the layers, and coat the top and sides evenly.

Step 10

Decorate and serve: Sprinkle colorful decorations on top. Slice into portions and serve.

Essential Tools

  • 8-inch round cake pan
  • Electric mixer
  • Mixing bowls
  • Rubber spatula
  • Wire rack
  • Serrated knife

Allergy Details

Be sure to check every item for allergens. If uncertain, talk with a healthcare provider.
  • Contains eggs, milk, wheat (gluten), and dairy. Verify decorations for allergens.

Nutrition per serving

Nutrition details are for your reference only. Always speak with a professional for medical concerns.
  • Caloric Content: 430
  • Total Fat: 21 grams
  • Carbohydrates: 57 grams
  • Proteins: 4 grams