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Perfect Funfetti Layer Cake Recipe with Easy White Chocolate Ganache

funfetti layer cake - featured image

A moist and sturdy funfetti layer cake with bursts of colorful sprinkles and a silky white chocolate ganache that adds an elegant touch. Perfect for celebrations or spontaneous sweet cravings.

Ingredients

Scale
  • 2 ½ cups (315 grams) all-purpose flour
  • 2 ½ teaspoons baking powder
  • ½ teaspoon baking soda
  • ½ teaspoon salt
  • 1 cup (227 grams) unsalted butter, softened
  • 1 ¾ cups (350 grams) granulated sugar
  • 4 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 1 cup (240 ml) full-fat sour cream
  • ½ cup (120 ml) whole or 2% milk
  • ¾ cup (120 grams) rainbow sprinkles (jimmies or nonpareils)
  • 10 ounces (280 grams) white chocolate chips or chopped white chocolate
  • 1 cup (240 ml) heavy cream
  • 2 tablespoons (28 grams) unsalted butter, softened
  • ½ teaspoon vanilla extract

Instructions

  1. Preheat the oven to 350°F (175°C). Grease two 8-inch round pans and line the bottoms with parchment paper.
  2. In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
  3. In a large bowl, beat the softened butter and granulated sugar with an electric mixer on medium speed until light and fluffy, about 3-4 minutes.
  4. Beat in the eggs one at a time, ensuring each is fully incorporated before adding the next. Mix in the vanilla extract.
  5. Alternately add the dry ingredients and sour cream to the butter mixture in three parts, starting and ending with dry ingredients. Mix gently on low speed until just combined.
  6. Add the milk and mix until smooth.
  7. Gently fold in the rainbow sprinkles using a rubber spatula to keep their shape and color intact.
  8. Divide the batter evenly into the prepared pans and smooth the tops.
  9. Bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean. Rotate pans halfway through baking.
  10. Let cakes cool in pans for 10 minutes, then invert onto cooling racks. Remove parchment and cool completely before frosting.
  11. To make ganache, heat heavy cream in a small saucepan over medium heat until just simmering. Pour over white chocolate chips in a heatproof bowl. Let sit 2 minutes, then stir gently until smooth.
  12. Stir in softened butter and vanilla extract until glossy and smooth. Let cool to room temperature but still pourable.
  13. Place one cake layer on a serving plate. Spread a generous layer of ganache on top. Add second cake layer and pour remaining ganache over the top, spreading over the sides.
  14. Refrigerate cake for at least 30 minutes to set ganache before slicing.

Notes

Use high-quality sprinkles like Wilton to prevent color bleeding. Ensure eggs and butter are at room temperature for best results. If ganache is too thick, warm gently; if too thin, chill briefly. Chill cake for at least 30 minutes before slicing for clean cuts. Adjust baking time if using different pan sizes.

Nutrition

Keywords: funfetti cake, white chocolate ganache, layer cake, celebration cake, birthday cake, easy cake recipe, moist cake, sprinkles cake