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Lemon Sheet Cake

Slice of lemon sheet cake with white icing, topped with a lemon slice and mint on a floral pink plate.

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Lemon Sheet Cake is a moist and tangy dessert made with a yellow cake mix, lemon pudding, and fresh lemon juice, topped with a sweet lemon glaze. It’s quick, easy, and perfect for any gathering.

Ingredients

Scale
  • 1 (15.25 oz) box yellow cake mix
  • 1/4 cup instant lemon pudding (dry)
  • 3/4 cup fresh lemon juice
  • 4 large eggs
  • 1/3 cup salted butter, melted
  • 4 cups powdered sugar
  • 4 tablespoons lemon juice (for glaze)
  • 2 tablespoons lemon zest

Instructions

  1. Preheat oven to 350°F and grease or line a 9×13-inch cake pan.
  2. In a large bowl, mix cake mix, lemon pudding, lemon juice, eggs, and melted butter using a mixer until well combined and fluffy.
  3. Pour batter into the prepared pan and smooth the top with a spatula.
  4. Bake for 20–25 minutes or until a toothpick inserted in the center comes out clean.
  5. Let the cake cool completely in the pan.
  6. In a separate bowl, whisk together powdered sugar, lemon zest, and 3 tablespoons of lemon juice. Add the 4th tablespoon if needed for consistency.
  7. Pour the glaze over the cooled cake. Spread evenly if desired.
  8. Top with lemon slices or berries if serving for presentation.

Notes

  • Fresh lemon juice is preferred over bottled for best flavor.
  • Use parchment paper if you want to remove the cake from the pan before icing.
  • Add more powdered sugar to the glaze if it’s too runny.
  • Cake can be made in a 12×18-inch pan, but baking time should be adjusted.
  • To freeze, wrap slices tightly and store for up to 3 months.

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