Lemon-Lime Layer Cake

User Reviews

4.5

96 reviews
Excellent
  • Prep Time

    30 mins

  • Cook Time

    30 mins

  • Additional Time

    1 hr

  • Total Time

    2 hrs

  • Servings

    10 slices

  • Calories

    937 kcal

  • Course

    Dessert

  • Cuisine

    American

Lemon-Lime Layer Cake

Lemon-Lime Layer Cake is a magical lemon cake filled with lime buttercream frosting that is bursting with deliciously bright, fresh flavors!

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Ingredients

Servings

Lemon Cake

  • 2 ½ cups all-purpose flour
  • ½ teaspoon baking powder
  • ½ teaspoon baking soda
  • 1 teaspoon salt
  • 1 cup unsalted butter softened
  • 1 ½ cups granulated sugar
  • 2 large eggs
  • 3 large egg yolks
  • ¼ cup lemon juice
  • 1 tablespoon lemon zest
  • 1 cup low-fat buttermilk (see note)

Lime Buttercream

  • 7 cups powdered sugar (about 2 pounds)
  • 2 limes juiced (about 1/4 cup)
  • 6 tablespoons lime zest
  • 1 cup unsalted butter softened
  • ½ cup milk plus more as needed
  • green food coloring (optional)

Toppings

  • Fresh lemon and lime slices
  • Candied lemon and lime peels or slices
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Instructions

Lemon Cake

  1. Preheat your oven to 350 degrees F. Grease and flour the inside of the cake pans, being sure to tap out the excess flour. Set aside.
  2. In a medium mixing bowl, stir together the flour, baking powder, baking soda, and salt. Set aside.
  3. In the bowl of a stand mixer (or a large mixing bowl with a hand mixer), beat together butter and sugar until light and fluffy, about 2 minutes. Reduce the mixer speed to low and add in eggs and egg yolks, one at a time. Mix in the lemon juice and zest.
  4. Alternate adding the flour mixture and buttermilk to the cake batter, beginning and ending with the flour. Mix until just combined, scraping the bowl as needed.
  5. Divide the cake batter evenly between the two prepared pans. Place them in the oven and bake for 30-35 minutes. The cakes are done when they start to pull away from the sides of the pan and a toothpick inserted in the middle comes out clean.
  6. Remove the cakes from the oven and cool in the pans on a wire rack for 10 minutes on a wire rack. Then remove the cakes from the pans and cool completely on the wire racks. (Warm cakes will melt the frosting and you don't want that!)

Lime Buttercream

  1. Once the cakes are cooled, make the buttercream. In a large bowl, beat together the powdered sugar and butter until smooth. Add the lime zest and juice and mix to combine.
  2. Pour in 1/2 of the milk and beat until incorporated. Pour in more milk as needed until the frosting is smooth but still stiff. Beat for about 5 minutes until fluffy. (You can tint the frosting with green food coloring if desired.)

Assembly

  1. Place one of the cake layers on a plate or cake stand, bottom side down. Spread about 1/3 of the frosting over the cake all the way to the edges. Place the second cake layer over the first. (If you want a flat top, turn the top layer bottom-side up.) Spread the rest of the frosting over the top and sides of the cake. To garnish, arrange fresh or candied lemon and lime slices over the top of the cake. Cut into 10 slices before serving.

Notes

  • If you don't have buttermilk on hand you can make sour milk instead. Mix together 1 cup of milk with 1 tablespoon of lemon juice or white vinegar. Stir and let sit for 5 minutes before using. 

Nutrition Information

Show Details
Serving 1slice Calories 937kcal (47%) Carbohydrates 142g (47%) Protein 7g (14%) Fat 40g (62%) Saturated Fat 25g (125%) Polyunsaturated Fat 2g Monounsaturated Fat 11g Trans Fat 1g Cholesterol 192mg (64%) Sodium 366mg (15%) Potassium 109mg (3%) Fiber 1g (4%) Sugar 115g (230%) Vitamin A 1292IU (26%) Vitamin C 8mg (9%) Calcium 63mg (6%) Iron 2mg (11%)

Nutrition Facts

Serving: 10slices

Amount Per Serving

Calories 937 kcal

% Daily Value*

Serving 1slice
Calories 937kcal 47%
Carbohydrates 142g 47%
Protein 7g 14%
Fat 40g 62%
Saturated Fat 25g 125%
Polyunsaturated Fat 2g 12%
Monounsaturated Fat 11g 55%
Trans Fat 1g 50%
Cholesterol 192mg 64%
Sodium 366mg 15%
Potassium 109mg 2%
Fiber 1g 4%
Sugar 115g 230%
Vitamin A 1292IU 26%
Vitamin C 8mg 9%
Calcium 63mg 6%
Iron 2mg 11%

* Percent Daily Values are based on a 2,000 calorie diet.

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Overall Rating

4.5

96 reviews
Excellent

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