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Funfetti Cake Recipe

4.4 from 112 reviews

This classic Funfetti Cake recipe is a vibrant, moist, and fluffy celebration cake perfect for any festivity. Featuring layers of tender vanilla cake with rainbow sprinkles throughout, it’s frosted with a smooth, creamy vanilla buttercream and more sprinkles for a festive finish. Ideal for birthdays, parties, or whenever you want a cheerful treat that’s as delightful to look at as it is to eat.

Ingredients

Scale

Cake

  • 1 cup (220g) unsalted butter, room temperature
  • 2 cups (400g) granulated sugar
  • 1/2 cup (110ml) vegetable or canola oil
  • 4 large eggs, room temperature
  • 1 tbsp vanilla extract
  • 3 1/4 cups (435g) all purpose flour
  • 2 1/2 tsp baking powder
  • 1/2 tsp baking soda
  • 1 tsp salt
  • 1/2 cup (125g) full fat sour cream, room temperature
  • 1 cup (225ml) buttermilk, room temperature
  • 3/4 cup (140g) rainbow jimmies sprinkles

Buttercream Frosting

  • 1 1/2 cups (330g) unsalted butter, room temperature
  • 5 cups (600g) powdered sugar
  • 1 tbsp vanilla extract
  • 23 tbsp milk
  • 1/2 cup (90g) sprinkles for decorating

Instructions

  1. Preheat and Prepare Pans: Preheat your oven to 350°F (175°C). Grease and line the bottoms of three 9-inch cake pans with parchment paper. You may use 8-inch pans but omit about 1 cup of batter to prevent the cakes from sinking. Fill pans just over halfway and optionally wrap pans with cake strips for even baking.
  2. Mix Dry Ingredients: Whisk together the all-purpose flour, baking powder, baking soda, and salt in a medium bowl. Set aside.
  3. Cream Butter and Sugar: Using a hand or stand mixer fitted with a whisk attachment, cream the unsalted butter and granulated sugar on medium-high speed for 3 to 5 minutes until light and fluffy.
  4. Add Oil: With the mixer running on low speed, slowly pour in the vegetable or canola oil. Scrape the bowl and mix again briefly to combine.
  5. Incorporate Eggs and Vanilla: Add eggs one at a time, mixing well after each addition. After every two eggs, scrape down the sides of the bowl to ensure even mixing. Then add the vanilla extract.
  6. Add Sour Cream: Mix in the full fat sour cream until fully incorporated.
  7. Alternate Dry and Wet Ingredients: Add the dry ingredients and buttermilk alternately to the batter, starting and ending with the dry ingredients. Mix just until combined after each addition.
  8. Fold in Sprinkles: Remove the bowl from the mixer. Using a rubber spatula, fold in the rainbow jimmies gently to distribute them evenly.
  9. Fill Pans and Bake: Evenly divide the batter among the prepared pans. Bake 9-inch cakes for 30-35 minutes, 8-inch cakes for 35-40 minutes. Cakes are done when a toothpick inserted in the center comes out clean.
  10. Cool Cakes: Let the cakes cool in their pans for 30 minutes. Run a knife around edges, invert onto a cooling rack, remove parchment paper, and cool completely. If assembling same day, chill in the fridge for about 1 hour. For baking ahead, cool at room temperature for 1 hour, wrap in plastic wrap, and refrigerate overnight.
  11. Prepare Buttercream: Beat the butter with a whisk attachment until smooth. Add powdered sugar one cup at a time, mixing well. Add vanilla extract and 2 tablespoons of milk as the mixture thickens. Add additional milk if needed to reach desired spreadability.
  12. Assemble Cake: Level chilled cakes if necessary. Spread a thin layer of buttercream between each cake layer. Apply a thin crumb coat around the entire cake, just enough to seal crumbs.
  13. Chill Cake: Refrigerate the crumb-coated cake for 20 minutes to set the frosting.
  14. Final Frosting and Decoration: Apply the remaining buttercream smoothly all over the cake. Decorate with extra sprinkles on top and sides as desired. Serve and enjoy your vibrant funfetti celebration cake!

Notes

  • Room temperature ingredients ensure a smooth batter and better rise.
  • Use cake strips or carefully filled pans for even cake layers without doming.
  • Do not overmix batter once dry ingredients are added to maintain tender crumb.
  • Chilling the cake layers before assembly makes frosting easier and cleaner.
  • The buttercream can be adjusted in consistency by adding milk one tablespoon at a time.
  • Store frosted cake covered in the refrigerator; bring to room temperature before serving for best texture.

Keywords: Funfetti cake, party cake, birthday cake, vanilla cake, sprinkle cake, layered cake, celebration cake, buttercream frosting