Bring a smile to someone’s face by celebrating their “half-birthday” with half of a birthday cake! One 9-inch vanilla funfetti cake, cut in half, stacked, and frosted to make a half-birthday cake.
One of the traditions that we started for our kids is celebrating their half-birthdays. At the halfway point between one birthday and the next, we celebrate with half a birthday cake and one present. It’s nothing big or fancy; it’s just our family slowing down and enjoying a small milestone. Childhood goes by so fast. Now that I have two children, I feel like someone has pressed the fast forward button on life. And since I can’t slow time down, I try to make a serious effort to celebrate each stage that my child is in. And what better way to celebrate than with cake?!
Jake just had his half-birthday (he’s 3 ½ now!). This was the first year that he (somewhat) understood his half-birthday celebration. Needless to say, he was thrilled to blow out 3 ½ candles and eat a slice of sprinkle-filled cake.
To make a half-birthday cake all you need to do is bake one 8 or 9-inch cake, cut it in half, stack the halves on top of each other, and frost them. Since Jake loves sprinkles (what kid doesn’t?), I made a homemade funfetti cake. A moist vanilla cake, filled with colored sprinkles, topped with vanilla buttercream, and garnished with even more sprinkles. We loved this cake, and we loved celebrating our 3 ½ year old boy even more.
If you’re not a fan of sprinkles, you can check out Jake’s chocolate half-birthday cake from last year.
Half Birthday Cake (Homemade Funfetti Cake)
- 1 ¼ cups all purpose flour
- ½ teaspoon baking powder
- ¼ teaspoon baking soda
- ¼ teaspoon salt
- 6 tablespoons unsalted butter, melted
- ¾ cup granulated sugar
- 1 egg
- 2 tablespoons plain yogurt or sour cream
- ⅔ cup milk
- 2 teaspoons pure vanilla extract
- ½ cup sprinkles, not nonpareils
- 10 tablespoons unsalted butter, softened
- 2 ½ cups powdered sugar, sifted
- 1 teaspoon pure vanilla extract
- 2-3 tablespoons heavy cream or half and half
- Additional sprinkles, for decorating the cake
For the cake:
- Preheat oven to 350°F. Grease a 9-inch cake pan and set aside.
- In a medium sized bowl, combine flour, baking powder, baking soda, and salt. Set aside
- In a large bowl, whisk melted butter and sugar, until combined. Add egg, yogurt/sour cream, milk, and vanilla extract, whisk to combine. Slowly stir in the dry ingredients, mixing until they are just combined. Fold in the sprinkles, being careful not to over mix.
- Pour the batter in to the prepared pan - the batter will be thick. Bake for 24-28 minutes, until the cake springs back when you touch it and a toothpick inserted into the center comes out clean. Cool completely on a wire rack.
For the frosting:
- With a hand mixer or stand mixer, on medium speed, beat butter and powdered sugar for 2 minutes, until light and creamy. Add vanilla extract and 2 tablespoons of cream, and beat for another 2 minutes, scraping the sides of the bowl as necessary. If the frosting seems too thick, you can add another tablespoon of cream.
To assemble the cake:
- Cut the cake in half. Using a butter knife or offset spatula, frost the top of one half and then place the other half on top of it. Continue frosting the rest of the cake. Pipe additional frosting around the borders, if desired. Garnish with sprinkles.
Nutritional Information is an estimate based on third-party calculations and may vary based on products used and serving sizes.
Half Birthday Cake (Chocolate Cake with Cream Cheese Frosting)
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