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From Smitten Kitchen

Confetti Party Cake

Makes
Servings: 16 small squares or 12 wedge-shaped slices
Ingredients
16
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Ingredients

Amounts
  • 1/2 cup (115 grams or 4 ounces) unsalted butter, at room temperature
  • 2/3 cups (130 grams) granulated sugar
  • 1/2 teaspoon kosher salt
  • 2 large egg whites
  • 1/2 teaspoon vanilla extract
  • 1/2 cup (120 ml) buttermilk
  • 1 teaspoon baking powder
  • 2 tablespoons (16 grams) cornstarch
  • 1 cup (130 grams) all-purpose flour
  • 1/4 cup rainbow sprinkles
  • 1/2 cup (115 grams or 4 ounces) unsalted butter, at room temperature
  • 1 1/4 cups (150 grams) powdered sugar, sifted if lumpy
  • Pinch of fine salt
  • 1/2 teaspoon vanilla extract, plus more to taste
  • 1 tablespoon milk or cream
  • Rainbow sprinkles for decoration
Shopping list

“What I'm missing” leaves off staples you almost certainly have — salt, pepper, oil, water — and anything already in your pantry.

The method

The steps live at smittenkitchen.com. We don't copy them: Smitten Kitchen wrote this recipe, and your visit supports them.

Get the recipe at Smitten Kitchen (opens in a new tab)