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Favorite Confetti Sheet Cake

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A quick and easy confetti sheet cake perfect for graduation parties and celebrations, featuring a tender crumb with colorful sprinkles and a creamy buttercream frosting.

Ingredients

Scale
  • 2 ½ cups (315 g) all-purpose flour
  • 2 ½ teaspoons baking powder
  • ½ teaspoon baking soda
  • ½ teaspoon salt
  • ¾ cup (170 g) unsalted butter, softened
  • 1 ¾ cups (350 g) granulated sugar
  • 3 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 1 cup (240 ml) whole milk, room temperature
  • ¾ cup (about 135 g) rainbow sprinkles
  • For the frosting:
  • 1 cup (225 g) unsalted butter, softened
  • 4 cups (480 g) powdered sugar, sifted
  • 1 ½ teaspoons pure vanilla extract
  • 3 to 4 tablespoons (45–60 ml) whole milk or heavy cream
  • Extra sprinkles for decorating

Instructions

  1. Preheat your oven to 350°F (175°C). Grease a 9×13 inch sheet pan or line it with parchment paper.
  2. In a medium bowl, whisk together the flour, baking powder, baking soda, and salt.
  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, fully incorporating each before adding the next. Stir in the vanilla extract.
  5. Reduce mixer speed to low and alternately add the dry ingredients and milk in three parts, starting and ending with dry ingredients. Mix just until combined.
  6. Gently fold in the rainbow sprinkles using a rubber spatula, being careful not to overmix.
  7. Pour the batter into the prepared pan and smooth the top evenly.
  8. Bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean or with a few moist crumbs.
  9. Cool the cake in the pan on a cooling rack for about 20 minutes, then remove from pan and cool completely before frosting.
  10. To make the frosting, beat the softened butter until creamy. Gradually add powdered sugar, mixing on low speed.
  11. Add vanilla extract and milk or cream to reach a spreadable consistency. Beat on high for about 3 minutes until fluffy.
  12. Spread the frosting evenly over the cooled cake and decorate with extra sprinkles.

Notes

Use firm, small sprinkles to prevent color bleeding. Keep butter softened but not melted for best creaming results. Fold sprinkles gently to maintain their shape. Frost only when cake is completely cool to avoid melting. For gluten-free, substitute with a 1:1 gluten-free flour blend and add xanthan gum if needed. Dairy-free options include plant-based butter and almond or oat milk. For cupcakes, bake 18-20 minutes. Warm knife under hot water and dry before slicing for clean cuts.

Nutrition

Keywords: confetti cake, sheet cake, graduation party dessert, easy cake recipe, buttercream frosting, sprinkles cake, celebration cake

Find it online: https://jodierecipes.com/favorite-confetti-sheet-cake-recipe-easy-homemade-graduation-party-dessert-ideas/