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Perfect Sheet Cake Recipe with School Colors Frosting for Easy Celebrations

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A moist, tender sheet cake topped with customizable school colors frosting, perfect for celebrations and easy to make with pantry staples.

Ingredients

Scale
  • 2 ½ cups (300 g) all-purpose flour
  • 2 cups (400 g) granulated sugar
  • 2 ½ teaspoons baking powder
  • ½ teaspoon baking soda
  • ½ teaspoon salt
  • ¾ cup (170 g) unsalted butter, softened
  • 1 cup (240 ml) buttermilk, room temperature (or 1 cup milk + 1 tbsp lemon juice, let sit 5 minutes)
  • 3 large eggs, room temperature
  • 2 teaspoons vanilla extract
  • 1 cup (225 g) unsalted butter, softened (for frosting)
  • 4 cups (480 g) powdered sugar, sifted
  • 2–4 tablespoons (30–60 ml) heavy cream or whole milk
  • 1 teaspoon vanilla extract (for frosting)
  • Gel food coloring in your school colors

Instructions

  1. Preheat your oven to 350°F (175°C). Lightly grease a 9×13 inch baking pan and line it with parchment paper.
  2. In a medium bowl, sift together the flour, baking powder, baking soda, and salt. Set aside.
  3. In a large bowl, beat the softened butter and granulated sugar with a mixer until light and fluffy, about 3-4 minutes.
  4. Add eggs one at a time, beating well after each addition. Mix in the vanilla extract.
  5. Add the flour mixture in three parts, alternating with the buttermilk in two parts, starting and ending with the flour mixture. Mix on low speed just until combined.
  6. Pour the batter into the prepared pan, scrape down the sides, and smooth the top.
  7. Bake for 35-40 minutes, or until a toothpick inserted in the center comes out clean or with a few moist crumbs.
  8. Cool the cake in the pan on a wire rack for 15 minutes, then remove from the pan and cool completely before frosting.
  9. For the frosting, beat softened butter on medium speed until creamy, about 2 minutes.
  10. Gradually add powdered sugar, mixing well after each addition.
  11. Add vanilla extract and 2 tablespoons heavy cream, then beat on high for 3 minutes until fluffy. Adjust cream to reach desired consistency.
  12. Divide frosting into bowls and tint each with gel food coloring for your school colors. Mix thoroughly.
  13. Frost the cooled cake by spreading a base layer with one color, then add stripes or designs with the others using an offset spatula or piping bags.
  14. Chill the cake for 30 minutes if desired to firm up the frosting.

Notes

Use room temperature ingredients for best results. Do not overmix after adding flour to avoid tough cake. Use gel food coloring for vibrant frosting without thinning. Let cake cool completely before frosting to prevent melting. Refrigerate cake to firm frosting if kitchen is warm.

Nutrition

Keywords: sheet cake, school colors frosting, easy celebration cake, moist cake, colorful frosting, party dessert

Find it online: https://jodierecipes.com/perfect-sheet-cake-recipe-with-school-colors-frosting-for-easy-celebrations/