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Delicious Key Lime Cake topped with smooth cream cheese frosting
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Key Lime Cake with Cream Cheese Frosting

A delightful dessert that balances tartness and sweetness, this Key Lime Cake with Cream Cheese Frosting evokes memories of Florida's sunny shores with its fluffy layers and creamy frosting.
Prep Time20 minutes
Cook Time25 minutes
Total Time45 minutes
Course: Cake, Dessert
Cuisine: American
Keyword: Baking, Cream Cheese Frosting, Dessert Recipe, Key Lime Cake
Servings: 12 servings
Calories: 450kcal

Ingredients

For the Cake

  • 2.5 cups all-purpose flour Provides the sturdy base for this delightful cake, creating a moist and tender crumb.
  • 2.5 tsp baking powder Ensures the cake rises beautifully, giving it a light and fluffy texture.
  • 0.5 tsp baking soda Works in conjunction with the baking powder to achieve the perfect lift.
  • 0.5 tsp salt Enhances all flavors, creating a more balanced taste experience.
  • 0.75 cup unsalted butter, softened Adds richness and moisture, ensuring each bite is satisfying.
  • 1.75 cups granulated sugar Sweetens the cake to counterbalance the tart key lime flavor.
  • 4 large eggs Acts as a binding agent, helping the cake hold its structure.
  • 0.25 cup key lime juice Infuses everything with that distinct and delightful tart flavor.
  • 1 tbsp key lime zest Provides an aromatic and sensory dynamic to the cake.
  • 1 tsp vanilla extract Adds a warm and inviting sweetness to round out the flavors.
  • 1 cup buttermilk Keeps the cake moist and imparts tenderness to each slice.

For the Frosting

  • 8 oz cream cheese, softened The star of the frosting that brings a rich and tangy creaminess.
  • 0.5 cup unsalted butter, softened Blends seamlessly with cream cheese to create a luscious frosting.
  • 4 cups powdered sugar Sweetens the frosting to perfect levels, ensuring it pipes beautifully.
  • 2 tbsp key lime juice Brightens the frosting with more of that signature lime flavor.
  • 1 tsp vanilla extract Complements the cream cheese and lime for a harmonious taste.
  • 1-2 tsp lime zest, for garnish Adds vibrancy and freshness.

Instructions

Preparation

  • Preheat the oven to 350°F (175°C) and grease and line three 8-inch round cake pans with parchment paper.
  • In a bowl, whisk together the flour, baking powder, baking soda, and salt.
  • In another bowl, cream the softened butter and granulated sugar until light and fluffy, about 2-3 minutes. Add the eggs one at a time, mixing well after each addition. Incorporate the lime juice, zest, and vanilla extract.
  • Alternate between adding the dry ingredients and buttermilk to the wet mixture, beginning and ending with the flour mixture. Mix gently until just combined.

Baking

  • Pour the batter evenly into the prepared cake pans. Bake for 22-25 minutes or until a toothpick inserted into the center comes out clean. Allow to cool completely in the pans before transferring to a wire rack.

Frosting

  • In a large bowl, beat the softened cream cheese and butter until smooth and fluffy. Gradually add the powdered sugar and beat until creamy. Mix in the lime juice and vanilla extract.

Assembly

  • Place one layer of cake on a cake stand or plate and spread frosting on top. Repeat with remaining layers and frost the entire outside of the cake. Garnish with lime zest.

Notes

For an extra touch, you can add more lime zest in the frosting or mix in crushed graham crackers for texture.