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+ servings
Key Lime Sheet Cake on a white plate

Key Lime Sheet Cake

Talk about a cake full of flavor! This Key Lime Sheet Cake is flavorful and buttery. It's a delicious cake with a citrus cream cheese frosting that is perfect for the summer heat! 

Course Dessert
Cuisine American
Keyword Cakes, dessert, key lime, sheet cakes
Prep Time 20 minutes
Cook Time 30 minutes
Servings 12 Servings



  • 2 1/2 cups of flour
  • 1 - 3 ounce package of Lime Jello
  • 1/2 teaspoon of salt
  • 1 teaspoon of baking powder
  • 1 teaspoon of baking soda
  • 1 1/2 cups of sugar
  • 1 1/2 cups of vegetable oil
  • 3/4 cup of Nellie and Joe's Key Lime Juice or other good brand of your choice
  • 1 Tablespoon of lemon juice
  • 1/2 teaspoon of Vanilla
  • 5 large eggs - beaten
  • Lime green food coloring gel - 1 teaspoon


  • 1 stick of butter (1/2 cup) - softened
  • 8 ounce cream cheese
  • 16 ounce powdered sugar
  • 3 - 4 drops of lemon juice


  1. Preheat the oven to 350 degrees.

  2. Grease and flour a 9 X 13 inch dish, and set aside. In the mixing bowl of a stand mixer, mix the Lime Jello, sugar, flour, salt, baking powder, and baking soda, until completely blended.

  3. Add the oil, Key Lime Juice, vanilla, eggs, and lime green food coloring. Mix until well blended.

  4. Scrape down the sides of the mixing bowl, and blend one more time.

  5. Pour the batter into the greased and floured 9 X 13 dish.

  6. Bake for 25 to 30 minutes, or until a toothpick inserted in the center comes out clean.

  7. Remove the cake to a wire rack to completely cool.

  8. When the cake is cooled, make the icing.

  9. Cream together the butter and cream cheese, until smooth and creamy.

  10. Add the powdered sugar, a little at a time, until all the powdered sugar is added, and mixing between additions.

  11. Mix until the icing is smooth and creamy.

  12. Add a few drops of lemon juice at the very end of mixing, just to give the icing a fresh flavor.

  13. Ice the cake with the icing, and sprinkle a few crushed graham cracker crumbs on top.

  14. Add a slice of lime, serve, and Enjoy!