Key Lime Sheet Cake

Name: Key Lime Sheet Cake
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Yield: 15 serving
Ingredients: 2 cups sugar; 2 cups all-purpose flour; 1/4 teaspoon salt; 1/2 teaspoon baking soda; 1 cup butter; 1/4 cup lime juice; 3/4 cup water; 2 large egg; 1/2 cup buttermilk; 2 teaspoons vanilla extract; lime; 1/2 cup butter; 4 cups powdered sugar; 3 tablespoons milk; 1 teaspoon vanilla extract; 2 teaspoons lime juice; lime zest

User Reviews

4.4

80 reviews

Good

Prep Time
10 mins
Cook Time
15 mins
Total Time
25 mins
Servings
15
Calories
468 kcal
Course
Dessert
Cuisine
American

Key Lime Sheet Cake

Joshua Guerrero

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This Key Lime Sheet Cake combines a tender cake base flavored with fresh lime juice and zest with a creamy lime frosting. The cake batter mixes sugar, flour, and leavening with melted butter, boiling water, buttermilk, eggs, and vanilla, resulting in a moist crumb. The lime frosting, made of butter, powdered sugar, milk, vanilla, and lime juice, adds sweetness and citrus brightness, finished with lime zest garnish for a fresh touch.

Description

The Key Lime Sheet Cake begins by combining sugar, flour, baking soda, and salt, then mixing in melted butter with boiling water and fresh lime juice. Eggs, buttermilk, vanilla, and lime zest are stirred in, creating a smooth batter poured into a rimmed baking sheet. Baking at a high temperature for a short time yields a moist cake with a soft crumb.

The frosting blends melted butter with powdered sugar, milk, vanilla, and lime juice for a tangy-sweet topping that complements the citrus flavors of the cake. Garnishing with lime zest adds a decorative and aromatic finish.

This cake offers a balance of sweet and tart with a moist texture, well-suited for gatherings or as a fresh dessert. It cuts into sheet-sized portions for easy serving.

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Ingredients

Servings

Cake

2 cups sugar
2 cups all-purpose flour
1/4 teaspoon salt
1/2 teaspoon baking soda
1 cup butter , melted
1/4 cup lime juice fresh
3/4 cup water boiling
2 large egg beaten
1/2 cup buttermilk
2 teaspoons vanilla extract
lime zest

Frosting

1/2 cup butter , melted
4 cups powdered sugar
3 tablespoons milk
1 teaspoon vanilla extract
2 teaspoons lime juice
lime zest for garnish

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Instructions

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Preheat oven to 400 degrees F.
Grease 11x17 rimmed baking sheet with non-stick cooking spray.
In a large bowl, whisk together sugar, flour, baking soda and salt.
Stir in melted butter and boiling water and lime juice.
Mix in vanilla, buttermilk, eggs and lime zest. Stir until smooth.
Pour batter into baking sheet and bake for 15-17 minutes. (Until toothpick inserted comes out clean.)
Cool cake for 15 minutes.
In a medium bowl, stir together melted butter, powdered sugar, milk, vanilla and lime juice. Stir until smooth.
Spread frosting on cake.
Top with extra lime zest for garnish.

Nutrition Information

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Calories 468kcal (23%) Carbohydrates 72g (24%) Protein 3g (6%) Fat 19g (29%) Saturated Fat 12g (60%) Cholesterol 71mg (24%) Sodium 256mg (11%) Potassium 44mg (1%) Sugar 58g (116%) Vitamin A 615IU (12%) Vitamin C 0.2mg (0%) Calcium 24mg (2%) Iron 0.9mg (5%)

Nutrition Facts

Serving: 15Serving

Amount Per Serving

Calories 468 kcal

% Daily Value*

Calories	468kcal	23%
Carbohydrates	72g	24%
Protein	3g	6%
Fat	19g	29%
Saturated Fat	12g	60%
Cholesterol	71mg	24%
Sodium	256mg	11%
Potassium	44mg	1%
Sugar	58g	116%
Vitamin A	615IU	12%
Vitamin C	0.2mg	0%
Calcium	24mg	2%
Iron	0.9mg	5%