Coconut Key Lime Rum Cake

Coconut Key Lime Rum Cake

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This Coconut Key Lime Rum Cake has a fluffy coconut frosting that adds a sweet topping to this delicious citrus cake!

Coconut Key Lime Rum Cake

Coconut Key Lime Rum Cake

PREP TIME: 20 minutes

COOK TIME: 26 minutes

TOTAL TIME: 46 minutes

Ingredients

For the Cake

  • 1 white cake mix
  • 3 eggs
  • 1/2 cup oil
  • 1/2 cup sour cream
  • 1/4 cup key lime juice
  • 3/4 cup milk
  • 2 tablespoons key lime zest (2 key limes)

For the Glaze

  • 1/4 cup butter
  • 1/4 cup sugar
  • 2 tablespoons key lime juice
  • 1/2 cup light rum

For the Frosting

  • 1/2 cup butter softened
  • 1/2 cup vegetable shortening
  • 1 teaspoon coconut extract
  • 1 teaspoon light rum
  • 1/2 teaspoon salt
  • 4 cups powdered sugar
  • 1/2 cup cream of coconut
  • 3/4 cup sweetened shredded coconut
  • key lime slices

Instructions

  1. Preheat the oven to 350 degrees. Spray 2 – 8 inch cake pans with nonstick baking spray or grease and flour the pans.
  2. Mix together the cake mix, eggs, oil, sour cream, key lime juice and zest, and milk and beat for 2 minutes on medium speed. Pour the batter into the prepared pans and bake for 26-28 minutes.
  3. Place the sugar, butter, and key lime juice in a small sauce pan and bring to a boil. Stir in the rum and simmer for 1 minute.
  4. Let the cakes cool in the pans for 10 minutes, then poke the tops of the cakes with a fork. Brush the tops of the cakes with the rum glaze.
  5. Place a flat plate or cookie sheet on top of the cakes and flip them out gently. Place another plate on the bottom of the cakes and flip them back right side up to keep them from cracking and splitting. Let the cakes cool completely.
  6. Beat together the butter, shortening, extract, rum, and salt until creamy. Slowly add the powdered sugar and cream of coconut. Beat another minute or two or until light and fluffy.
  7. Use a sharp knife to carefully level the tops of the cakes.
  8. Place one cake layer on a plate. Spread half of the frosting on top of the cake. Place the second cake layer on top and spread with the rest of the frosting. Sprinkle with the shredded coconut. Add key lime slices right before serving.

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Coconut Key Lime Rum Cake

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