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Moist Homemade Confetti Birthday Cake with Easy Creamy Vanilla Frosting

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A soft, colorful, and moist homemade confetti birthday cake topped with silky, creamy vanilla frosting. Perfect for celebrations or any sweet craving.

Ingredients

Scale
  • 2 ½ cups (312 g) all-purpose flour
  • 2 ½ tsp baking powder
  • ½ tsp baking soda
  • ½ tsp salt
  • 1 cup (227 g) unsalted butter, softened
  • 1 ¾ cups (350 g) granulated sugar
  • 4 large eggs, room temperature
  • 1 tbsp pure vanilla extract
  • 1 cup (240 ml) buttermilk, room temperature (or milk + 1 tbsp white vinegar)
  • ½ cup (90 g) rainbow sprinkles (non-melting “jimmies” recommended)
  • 1 cup (227 g) unsalted butter, softened (for frosting)
  • 4 cups (480 g) powdered sugar, sifted
  • 2 tsp pure vanilla extract (for frosting)
  • 3–4 tbsp (45–60 ml) heavy cream or whole milk (or dairy-free milk alternative)
  • Pinch of salt

Instructions

  1. Preheat the oven to 350°F (175°C). Grease two 8-inch round cake pans and line the bottoms 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 with granulated sugar on medium speed until light and fluffy, about 3-4 minutes.
  4. Beat in the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
  5. With the mixer on low speed, add the dry ingredients in three batches, alternating with buttermilk in two additions, starting and ending with the dry mix. Mix just until combined.
  6. Gently fold in the rainbow sprinkles using a rubber spatula, being careful not to overmix.
  7. Divide the batter evenly between the prepared pans and smooth the tops.
  8. Bake for 28-32 minutes, or until a toothpick inserted in the center comes out clean. Let cool in pans for 10 minutes.
  9. Run a knife around the edges and invert cakes onto cooling racks. Cool completely before frosting.
  10. For the frosting, beat softened butter on medium speed until creamy, about 2 minutes.
  11. Gradually add powdered sugar, beating on low speed to avoid a sugar cloud.
  12. Add vanilla extract, salt, and 3 tablespoons of cream. Beat on high for 3-4 minutes until fluffy. Add more cream if needed for spreadable consistency.
  13. Place one cake layer on a serving plate and spread a generous layer of frosting on top.
  14. Add the second layer and frost the top and sides evenly. Use an offset spatula or knife for desired finish.
  15. Optionally, sprinkle extra rainbow sprinkles on top or around edges for decoration.

Notes

Use room temperature eggs and butter for best texture. Fold sprinkles gently to avoid color bleeding. If frosting is too thick, add a splash of milk to loosen. Cool cakes completely before frosting to prevent melting. For gluten-free or vegan versions, substitute ingredients accordingly.

Nutrition

Keywords: confetti cake, birthday cake, vanilla frosting, homemade cake, easy cake recipe, moist cake, celebration cake

Find it online: https://piperplate.com/moist-homemade-confetti-birthday-cake-recipe-easy-creamy-vanilla-frosting/