Sunshine Sheet Cake: A Burst of Sweet Citrus Joy

Sunshine Sheet Cake is a delightful dessert that brings the bright and refreshing flavors of citrus to your taste buds. This moist and zesty cake is like a burst of sunshine on your plate, making it perfect for gatherings, celebrations, or simply to brighten your day. Here’s how to make it.


For the Cake:

  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • 1 teaspoon baking soda
  • 1 teaspoon salt
  • 1 cup unsalted butter, melted
  • 1 cup water
  • 2 large eggs
  • 1/2 cup sour cream
  • 1 teaspoon vanilla extract
  • Zest of 2 lemons
  • Zest of 1 orange

For the Citrus Glaze:

  • 2 cups powdered sugar
  • 1/4 cup fresh lemon juice
  • 2 tablespoons fresh orange juice
  • Zest of 1 lemon (for garnish)
  • Zest of 1 orange (for garnish)


1. Preheat and Prepare:

  • Preheat your oven to 350°F (175°C).
  • Grease and flour a 9×13-inch baking pan or line it with parchment paper for easy removal.

2. Mix Dry Ingredients:

  • In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking soda, and salt.

3. Combine Wet Ingredients:

  • In a saucepan, melt the unsalted butter over medium-low heat.
  • Stir in water and bring the mixture to a gentle boil. Remove it from the heat.

4. Add Eggs and Dairy:

  • In a separate bowl, whisk the eggs, then gradually whisk in a small amount of the hot butter mixture. This tempers the eggs.
  • Pour the egg mixture back into the remaining butter mixture and stir well.
  • Add sour cream, vanilla extract, lemon zest, and orange zest. Mix until well combined.

5. Combine Wet and Dry Mixtures:

  • Pour the wet mixture into the bowl with the dry ingredients.
  • Stir until the batter is smooth and well incorporated.

6. Bake:

  • Pour the batter into the prepared baking pan.
  • Bake in the preheated oven for 25-30 minutes or until a toothpick inserted into the center comes out clean.

7. Make the Citrus Glaze:

  • While the cake is baking, prepare the citrus glaze.
  • In a bowl, combine the powdered sugar, fresh lemon juice, and fresh orange juice. Mix until you have a smooth, pourable glaze.

8. Glaze the Cake:

  • As soon as the cake comes out of the oven, poke it all over with a fork or skewer.
  • Pour the citrus glaze evenly over the warm cake.

9. Cool and Garnish:

  • Allow the cake to cool completely in the pan.
  • Once cooled, garnish with additional lemon zest and orange zest for a burst of citrus flavor.

10. Slice and Serve:

  • Slice the Sunshine Sheet Cake into squares and serve.

Sunshine Sheet Cake captures the zesty and vibrant essence of citrus in a delightful dessert. The lemon and orange zest in the cake, combined with the sweet-tart glaze, creates a burst of flavor that’s ideal for brightening up any occasion. This cake brings a ray of sunshine to your taste buds, whether it’s for a special occasion or a simple treat.