Print

Moist Classic Sheet Cake Recipe with Creamy Vanilla Frosting

moist classic sheet cake - featured image

A rich, moist chocolate sheet cake topped with a smooth and creamy vanilla frosting, perfect for potlucks, birthdays, and family gatherings.

Ingredients

Scale
  • 2 cups (240g) all-purpose flour
  • 2 cups (400g) granulated sugar
  • 3/4 cup (75g) unsweetened cocoa powder
  • 1 1/2 tsp baking powder
  • 1 1/2 tsp baking soda
  • 1 tsp salt
  • 1 cup (240ml) buttermilk, room temperature
  • 1/2 cup (120ml) vegetable oil
  • 2 large eggs, room temperature
  • 2 tsp vanilla extract
  • 1 cup (240ml) hot water (steaming, not boiling)
  • 1 cup (227g) unsalted butter, softened
  • 4 cups (480g) powdered sugar, sifted
  • 2 tsp vanilla extract (for frosting)
  • 24 tbsp (30-60ml) heavy cream
  • Pinch of salt (for frosting)

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9×13 inch sheet pan or line with parchment paper.
  2. In a large bowl, sift together flour, sugar, cocoa powder, baking powder, baking soda, and salt. Whisk to blend evenly.
  3. In another bowl, whisk buttermilk, vegetable oil, eggs, and vanilla extract until smooth.
  4. Pour wet ingredients into dry ingredients and stir gently until just combined. Do not overmix.
  5. Slowly add hot water while stirring. Batter will be thin, which is correct.
  6. Pour batter into prepared pan and spread evenly.
  7. Bake for 30-35 minutes. Test doneness with a toothpick; it should come out with moist crumbs but no wet batter.
  8. Cool cake completely on a cooling rack before frosting.
  9. To make frosting, beat softened butter on medium speed until creamy (about 2 minutes).
  10. Gradually add sifted powdered sugar on low speed to avoid clouds of sugar.
  11. Mix in vanilla extract and 2 tbsp heavy cream. Beat on medium-high speed until fluffy and smooth. Adjust cream to desired consistency.
  12. Spread frosting evenly over cooled cake using a spatula or knife.
  13. Slice into squares and serve.

Notes

Do not overmix batter to keep cake tender. Use room temperature butter for frosting. Let cake cool completely before frosting to prevent melting. Fresh cocoa powder blooms better in hot water. If frosting is too soft, chill for 10 minutes before spreading.

Nutrition

Keywords: sheet cake, chocolate cake, vanilla frosting, moist cake, easy cake recipe, birthday cake, potluck dessert