Confetti Layer Cake Funfetti Recipe

Confetti Layer Cake Funfetti Recipe tastes like fluffy vanilla birthday cake with buttery crumbs, rainbow crunch, and a creamy frosting finish. It fits sprinkle lovers of all ages and works for birthdays, bake sales, and just-because bakes, and you can finish it in about 2 hours 15 minutes including cooling and frosting. I baked my first funfetti cake in a tiny apartment oven, and the sprinkles still made it feel like a parade.

Why Confetti Layer Cake Funfetti Recipe Is Worth It

Confetti Layer Cake Funfetti Recipe delivers a tender, bakery-style crumb, bold vanilla flavor, and clean pops of color from real rainbow jimmies. The layers stay sturdy for stacking, the frosting pipes like a dream, and the whole thing slices neatly without crumble drama.

You can mix it with pantry staples, swap in easy shortcuts, and still land that classic birthday cake vibe. I tested it for balance, sweetness, and moisture so your second slice tastes as good as the first.

Moist crumb, bright vanilla, and sprinkles in every bite made this the life of the party ★★★★★

Ingredients You Need

• Cake layers:

  • Cake flour 2.5 cups (295 g). Use all-purpose flour 2.25 cups (281 g) plus 3 tablespoons cornstarch as a swap.
  • Baking powder 1 tablespoon.
  • Fine sea salt 1 teaspoon.
  • Unsalted butter 1 cup (226 g), room temp. I like Challenge or Kerrygold for flavor.
  • Granulated sugar 1.5 cups (300 g).
  • Egg whites 4 large, room temp. Carton whites work in a pinch, shake well.
  • Buttermilk 1.5 cups (360 ml), room temp. Pantry shortcut: mix milk with 1.5 tablespoons lemon juice or vinegar, rest 5 minutes.
  • Pure vanilla extract 2 teaspoons. Add 0.25 teaspoon almond extract for classic birthday cake notes.
  • Rainbow jimmies 0.5 cup plus extra for decorating. Use jimmies or confetti quins; skip nonpareils since they bleed.

• Vanilla buttercream:

  • Unsalted butter 1.5 cups (340 g), room temp.
  • Powdered sugar 6 cups (720 g), sift if clumpy.
  • Fine sea salt 0.25 teaspoon.
  • Heavy cream 6 to 8 tablespoons, room temp. Use whole milk as a swap, add slowly.
  • Pure vanilla extract 2 teaspoons. Optional 0.25 teaspoon almond extract.

• Equipment:

  • Three 8-inch round cake pans, parchment rounds, nonstick spray with flour.
  • Stand mixer or hand mixer, large bowls, fine-mesh sieve.
  • Offset spatula, bench scraper, piping bags and tips if decorating.
  • Cooling racks, digital scale, and oven thermometer.

Quick Tips & substitutions

• Use rainbow jimmies, not nonpareils, so the colors stay clean.
• Bring butter, eggs, and buttermilk to room temp for a smooth batter.
• Weigh flour for accuracy, or spoon and level to avoid dense cake.
• Toss sprinkles with 1 teaspoon flour if they tend to sink in your oven.
• No buttermilk on hand? Mix milk with lemon juice or vinegar and wait 5 minutes.
• Need gluten-free? Use a 1:1 baking blend with xanthan gum.
• Baking at high altitude? Cut baking powder by 1 teaspoon and add 2 tablespoons flour.
• Short on time? Frost with a good store-bought vanilla or confetti frosting.
• Want a whiter crumb? Swap 2 tablespoons butter with neutral oil and stick with only egg whites.

How to Make Confetti Layer Cake Funfetti Recipe

Step 1: Prep the pans and oven

• Preheat oven to 350°F. Grease three 8-inch pans, line bottoms with parchment, then grease and flour the parchment.
• Stir cake flour, baking powder, and salt in a bowl. Set it aside.

Step 2: Mix the batter

• Beat butter and sugar on medium-high until pale and fluffy, about 3 minutes. Scrape the bowl.
• Mix in egg whites one at a time on medium speed. Add vanilla and optional almond extract.
• Add dry ingredients and buttermilk in 3 alternating additions, starting and ending with dry. Mix on low just until smooth.
• Fold in sprinkles with a spatula. Divide batter evenly among pans.

Step 3: Bake the layers

• Bake 20 to 24 minutes, until a toothpick comes out clean and the tops spring back.
• Cool in pans 10 minutes, then turn out onto racks. Peel parchment and cool completely.

Step 4: Make the vanilla buttercream

• Beat butter on medium-high until creamy and lighter in color, about 2 minutes.
• Add half the powdered sugar, salt, and 4 tablespoons cream. Mix on low, then beat on medium-high for 1 minute.
• Add remaining sugar and more cream, 1 tablespoon at a time, until it spreads and pipes easily. Beat 2 minutes until fluffy.

Step 5: Assemble and frost

• Level domed layers with a serrated knife. Set one layer on a board and add about 1 cup frosting.
• Stack the second and third layers with frosting between. Spread a thin crumb coat over the whole cake and chill 15 minutes.
• Apply a final coat, smooth the sides, and add swoops on top. Press extra sprinkles around the base and scatter more on top.

Step 6: Slice and enjoy

• Chill 15 to 20 minutes for cleaner slices. Warm a knife with hot water, wipe it dry, and cut generous wedges.

Variations

• Sheet cake: Bake in a 9 by 13 pan for 30 to 35 minutes.
• Cupcakes: Fill liners two-thirds full and bake 18 to 20 minutes; yields about 24.
• Chocolate funfetti: Swap 0.5 cup flour with 0.5 cup Dutch cocoa and add 2 tablespoons milk.
• Lemon funfetti: Add 1 tablespoon lemon zest to the batter and 1 tablespoon lemon juice to the frosting.
• Confetti overload: Fold mini white chocolate chips into the batter and top with confetti quins.

Ways to Serve

• Add candles and serve with vanilla ice cream or birthday cake ice cream.
• Brew coffee for adults and pour cold milk for kids.
• Pile fresh strawberries or raspberries on each slice.
• Drizzle warm hot fudge or strawberry sauce over a chilled slice.

Storage

Cover the cake and keep it at cool room temp for up to 2 days, or refrigerate up to 5 days. Wrap unfrosted layers well and freeze up to 3 months, then thaw wrapped at room temp. Chill the frosted cake for 20 minutes before wrapping to protect the finish, and add fresh sprinkles on serving day if you want extra crunch. Keep leftover buttercream in an airtight container in the fridge for 1 week or freeze it for 2 months, then rewhip with a splash of cream.

Ally Sanders

Confetti Layer Cake Funfetti Recipe

Confetti Layer Cake Funfetti Recipe tastes like fluffy vanilla birthday cake with buttery crumbs, rainbow crunch, and a creamy frosting finish. It’s perfect for birthdays, bake sales, and anytime you want a festive sprinkle-filled dessert.

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Prep Time 45 minutes mins

Cook Time 25 minutes mins

Total Time 2 hours hrs 15 minutes mins

Servings: 12

Course: Dessert

Ingredients

  

• 2 1/2 cups cake flour
• 1 tablespoon baking powder
• 1 teaspoon fine sea salt
• 1 cup unsalted butter, room temperature
• 1 1/2 cups granulated sugar
• 4 large egg whites, room temperature
• 1 1/2 cups buttermilk, room temperature
• 2 teaspoons pure vanilla extract
• 1/2 cup rainbow jimmies, plus extra for decorating

• 1 1/2 cups unsalted butter, room temperature
• 6 cups powdered sugar
• 1/4 teaspoon fine sea salt
• 6-8 tablespoons heavy cream, room temperature
• 2 teaspoons pure vanilla extract

Instructions

 

1. Preheat the oven to 350°F (175°C). Grease three 8-inch round cake pans, line the bottoms with parchment rounds, then grease and lightly flour the parchment.
2. In a medium bowl, whisk together the cake flour, baking powder, and fine sea salt. Set aside.
3. In a large mixing bowl, beat the butter and granulated sugar on medium-high speed until pale and fluffy, about 3 minutes, scraping down the bowl as needed.
4. Beat in the egg whites one at a time on medium speed, mixing just until incorporated. Add the vanilla extract and mix to combine.
5. Add the dry ingredients and buttermilk in three alternating additions, beginning and ending with the dry ingredients, mixing on low speed just until the batter is smooth.
6. Gently fold in the rainbow jimmies with a spatula. Divide the batter evenly among the three prepared pans and smooth the tops.
7. Bake for 20 to 24 minutes, or until the tops spring back lightly when touched and a toothpick inserted in the center comes out clean.
8. Cool the cakes in the pans for 10 minutes, then turn them out onto wire racks. Peel off the parchment and let the layers cool completely.

1. In a large bowl, beat the butter on medium-high speed until creamy and lighter in color, about 2 minutes.
2. Add about half of the powdered sugar, the fine sea salt, and 4 tablespoons of the heavy cream. Mix on low speed until combined, then increase to medium-high and beat for 1 minute.
3. Add the remaining powdered sugar and enough additional cream, 1 tablespoon at a time, to reach a smooth, spreadable consistency. Beat for 2 more minutes until light and fluffy, then beat in the vanilla extract.

1. If needed, level any domed cake layers with a serrated knife. Place one cake layer on a serving plate or cake board and spread about 1 cup of buttercream over the top.
2. Set the second cake layer on top and spread with another layer of buttercream. Place the third layer on top, pressing gently to stack evenly.
3. Spread a thin crumb coat of buttercream over the top and sides of the cake. Chill for about 15 minutes to set the crumb coat.
4. Apply a final, thicker layer of buttercream, smoothing the sides and adding swoops or decorative texture on top as desired. Press extra sprinkles around the base of the cake and scatter more over the top.
5. Chill the finished cake for 15 to 20 minutes for cleaner slices. Warm a sharp knife in hot water, wipe it dry, and slice generous wedges to serve.

Notes

Nutrition Information
Approximate per serving (1/12 of cake): 620 calories; fat 32 g; saturated fat 20 g; carbohydrates 80 g; fiber 0 g; sugars 62 g; protein 6 g; sodium 320 mg. Values are estimates and will vary based on specific ingredients, brands, and portion sizes.