funfetti layer cake
HAPPY BIRTHDAY TO WHOEVER!
Ingredients
- 2 sticks butter, softened
- 1 1/2 cups sugar
- 6 large egg whites, at room temperature
- 1 tbsp vanilla extract
- 1/2 cup plain whole milk Greek yogurt
- 2 1/2 cups all purpose flour
- 1 1/2 tsp baking powder
- 1/2 tsp baking soda
- 1/2 tsp kosher salt
- 1 1/2 cups buttermilk, at room temperature
- 1/2 cup funfetti sprinkles, plus more for garnish
vanilla buttercream
- 1 stick butter, softened
- 2 tsp vanilla extract
- 3 1/2-4 cups powdered sugar
- 1/4-1/3 cup heavy cream
Instructions
- Preheat oven to 350 degrees. Grease 2 9 inch cake pans with butter or oil.
- In a large bowl, beat the butter and sugar until fluffy, about 3-4 minutes. Beat in the egg whites until fully incorporated. Whip in the vanilla and Greek yogurt. Add the flour, baking powder, baking soda, and salt. With the mixer running, slowly stream in the buttermilk, mixing until just combined. Use a rubber spatula to fold in the funfetti sprinkles. Do not overmix.
- Divide the batter evenly between the cake pans. Bake 30-35 minutes until the center is set and an inserted toothpick emerges with just a few moist crumbs. Let cool in the pans for 10 minutes, then run a knife around the edges to release the layers and flip onto a wire rack. Cool completely.
- When the cakes are cooled, make the frosting. In a bowl, whip the butter, vanilla, and powdered sugar on low speed until combined. Add in 1/4 cup of heavy cream and mix to combine, then increase the speed to medium high and whip until very light and fluffy. If needed, pour in cream 1 tablespoon at a time until the frosting is soft and spreadable.
- Place one cake layer on a flat plate or cake stand. Frost the top generously, then add the second layer. Frost all the way around the cake until completely covered. If you have extra frosting, feel free to pipe little decorations onto the cake. Finish with lots of rainbow sprinkles.
Notes
*To make ahead: Cake layers can be baked ahead, cooled, and stored in the fridge, undecorated, for up to 3 days. You can also freeze the layers for up to a month. Be sure to wrap them tightly in plastic wrap or place in a secure ziptop bag. I recommend storing the layers separate so they do not stick together.