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Easy Moist Graduation Sheet Cake Recipe with School Colors Frosting You’ll Love

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A quick and easy moist sheet cake perfect for graduation parties, featuring customizable vibrant school colors frosting that stays bright without overpowering the cake’s delicate flavor.

Ingredients

Scale
  • 2 ½ cups (310g) all-purpose flour, sifted
  • 2 cups (400g) granulated sugar
  • 2 ½ teaspoons baking powder
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • ½ cup (113g) unsalted butter, softened
  • 1 cup (240ml) buttermilk, room temperature (or milk + 1 tbsp lemon juice)
  • 3 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 1 cup (240ml) hot water
  • 1 cup (226g) unsalted butter, softened (for frosting)
  • 4 cups (480g) powdered sugar, sifted
  • 2–3 tablespoons (30-45ml) whole milk
  • 1 teaspoon pure vanilla extract (for frosting)
  • Gel food coloring in school colors
  • Optional: a pinch of salt (for frosting)

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9×13 inch sheet pan with butter or non-stick spray and lightly dust with flour.
  2. In a large bowl, whisk together flour, sugar, baking powder, baking soda, and salt until evenly combined.
  3. In a separate medium bowl, beat ½ cup softened unsalted butter until creamy. Add eggs one at a time, beating well after each addition. Stir in 2 teaspoons vanilla extract.
  4. Alternately add the dry ingredient mixture and buttermilk to the butter-egg mixture, beginning and ending with dry ingredients. Mix on low speed just until combined.
  5. Slowly stir in hot water; batter will be thin.
  6. Pour batter into prepared sheet pan and smooth the top with a spatula.
  7. Bake for 35-40 minutes or until a toothpick inserted in the center comes out clean or with a few moist crumbs.
  8. Remove from oven and cool in the pan on a wire rack for at least 1 hour before frosting.
  9. For frosting, beat 1 cup softened butter until fluffy. Gradually add powdered sugar, alternating with milk. Mix in vanilla extract and a pinch of salt.
  10. Divide frosting into separate bowls and tint each with gel food coloring to desired school colors.
  11. Using an offset spatula, spread frosting evenly over cooled cake. For multi-color frosting, apply colors side-by-side or pipe designs representing school colors.
  12. Chill the frosted cake for 15 minutes to set colors before slicing.

Notes

Use gel food coloring for vibrant frosting that doesn’t thin out. Let the cake cool completely before frosting to prevent melting. For gluten-free, substitute flour with a 1:1 gluten-free baking blend containing xanthan gum. For vegan version, use flax eggs and plant-based milk and margarine. If frosting is too thick, add more milk; if too thin, add more powdered sugar. Chill frosted cake briefly before slicing.

Nutrition

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

Find it online: https://twirltaste.com/easy-moist-graduation-sheet-cake-recipe-with-school-colors-frosting-youll-love/