Description
Key Lime Sheet Cake is a refreshing, tangy dessert that combines the vibrant flavor of key lime with a moist, fluffy cake and a creamy lime-infused frosting. This easy-to-make treat is perfect for any occasion, from summer gatherings to special celebrations, offering a delightful twist on the classic key lime pie!
Ingredients
For the Cake:
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2 ½ cups all-purpose flour
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1 ½ teaspoons baking powder
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½ teaspoon baking soda
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½ teaspoon salt
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1 cup unsalted butter, softened
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2 cups granulated sugar
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4 large eggs
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1 teaspoon vanilla extract
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1 teaspoon lime zest (from 2 limes)
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½ cup fresh lime juice (from about 4 limes)
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½ cup buttermilk
For the Frosting:
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8 oz cream cheese, softened
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½ cup unsalted butter, softened
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4 cups powdered sugar
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1 teaspoon vanilla extract
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1 tablespoon lime zest (from 1 lime)
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2 tablespoons fresh lime juice
- Pinch of salt
Instructions
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Making the Cake:
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Preheat the oven: Preheat to 350°F (175°C). Grease and flour a 9×13-inch baking pan or line with parchment paper.
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Mix dry ingredients: In a bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
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Cream the butter and sugar: In a large mixing bowl, beat the softened butter and sugar until light and fluffy (about 3-4 minutes).
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Add eggs and flavorings: Add eggs one at a time, mixing well after each. Stir in vanilla extract, lime zest, and lime juice.
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Alternate mixing dry and wet ingredients: Gradually add the dry ingredients, alternating with buttermilk. Mix until just incorporated, being careful not to overmix.
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Bake the cake: Pour batter into the prepared pan. Bake for 30-35 minutes, or until a toothpick comes out clean. Cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
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Making the Frosting:
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Cream the butter and cream cheese: Beat the softened cream cheese and butter until smooth and creamy.
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Add powdered sugar: Gradually add powdered sugar, one cup at a time, until fully incorporated and smooth.
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Flavor the frosting: Stir in vanilla extract, lime zest, lime juice, and a pinch of salt. Beat until fluffy and well combined.
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Assembling the Cake:
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Frost the cake: Once the cake is completely cooled, spread frosting evenly over the top with an offset spatula.
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Garnish (optional): For extra lime flavor, garnish with lime zest or thin lime slices.
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Serving:
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Serve chilled or at room temperature and enjoy the zesty, refreshing flavors.
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Notes
Make-Ahead: Bake the cake ahead of time, store it at room temperature, and frost just before serving. torage: Keep leftover cake in an airtight container in the refrigerator for up to 4-5 days.Variations: Add toasted coconut flakes on top for a tropical twist or substitute some of the lime zest with lemon zest for a lemon-lime version.