This light and fluffy Funfetti Layer Cake features a delicious vanilla cake with lots of sprinkles and a vanilla buttercream...with more sprinkles! It makes a great birthday cake...or for any other special occasion.
Prep Time45 minutesmins
Cook Time25 minutesmins
Total Time1 hourhr10 minutesmins
Course: Dessert
Cuisine: American
Keyword: buttercream, cake, funfetti, layer cake
Servings: 16servings
Calories: 592kcal
Author: David
Ingredients
For the Cake
3cupsall-purpose flour
1½Tbspbaking powder
½tspsalt
1cupunsalted butterroom temperature
2cupsgranulated sugar
2large eggs
4large egg whites
1cupwhole milk
½cupsour cream
2tspvanilla extract
⅔cuprainbow sprinklesi.e. rainbow jimmies
For the Buttercream Frosting
8cupsconfectioner’s sugardivided
1¾cupsunsalted butterroom temperature
¼tspsalt
1½tspvanilla extract
¼cupwhole milk
⅔cuprainbow sprinkles
Instructions
For the Cake
Spray (3) 8-inch round cake pans with nonstick cooking spray. Line bottoms of pans with parchment paper; set aside.
Preheat oven to 350°F.
Using a medium bowl, sift together the flour, baking powder and salt. Stir until well combined; set aside.
Using a stand mixer fitted with the paddle attachment, cream together the butter and sugar until light and fluffy (~2-3 minutes on medium speed).
Using a small bowl, whisk together the eggs and egg whites. Add mixture to the bowl of the stand mixer; mix on low speed until well combined.
Add half of the flour mixture to the bowl; mix on low speed until well combined.
Add the milk, sour cream and vanilla extract; mix on low speed until well combined.
Add the remaining flour mixture; mix on low speed until well combined. (Tip: Don’t forget to scrape down the sides of the bowl to ensure all ingredients are fully mixed.)
Add rainbow sprinkles; mix until well combined.
Divide cake batter evenly into the three prepared cake pans.
Bake at 350°F for 20-25 minutes, or until a toothpick inserted into the center of the cake comes out clean.
Let cakes cool in pan for 10 minutes before turning out onto a wire rack until completely cool.
For the Buttercream Frosting
Using a stand mixer fitted with the paddle attachment, add 4 cups of confectioner’s sugar, butter and salt. Mix on low speed for 1-2 minutes, or until well combined.
Add remaining confectioner’s sugar 1 cup at a time, mixing after each addition until smooth.
Add vanilla and milk; beat on medium-high for 3-4 minutes, or until smooth and fluffy.
Fold in the sprinkles until well combined.
To Assemble
Place one layer of cooled cake (flat side down) on a large plate.
Remove 1 cup of frosting and set aside.
Using an offset spatula, spread 1½ cups of frosting evenly on top of cake.
Repeat process with second cake layer and another 1½ cups of frosting.
Place third cake layer on top (flat side up). Spread remaining frosting on sides and top of the cake.
Place reserved frosting (from above) into a piping bag fitted with a large open star tip. Pipe frosting stars around top edge of the cake. (Tip: Refrigerate cake for 1 hour before slicing and serving.)