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Key Lime Cupcakes

Key Lime Cupcakes bake tangy, sweet key lime pie flavor into light, fluffy cupcakes with real key lime juice and creamy sweet lime frosting.

Prep Time
15 mins
Cook Time
15 mins
Total Time
1 hr 10 mins
Servings: 24 servings
Calories: 438 kcal
Course: Dessert
Cuisine: American

Ingredients

Key Lime Cupcakes:
  • 3/4 cup unsalted butter
  • 1 1/3 cups sugar
  • 3 large eggs
  • 1/2 teaspoon coconut extract
  • 1 cup whole milk , room temperature
  • 1/4 cup key lime juice
  • 2 1/3 cups flour
  • 2 1/4 teaspoons baking powder
  • 1/2 teaspoon salt
  • 4-6 drops green food coloring , optional
Key Lime Cream Cheese Frosting:
  • 24 ounces cream cheese , softened
  • 1/2 cup unsalted butter , softened
  • 3 tablespoons sour cream
  • 3 tablespoons key lime juice
  • 1 teaspoon vanilla extract
  • 6 1/2 cups powdered sugar , about 2 pounds
  • 4-6 drops green food coloring , optional
Filling:
  • 1/2 cup condensed milk , for brushing

Instructions

Key Lime Layer Cake:
    Cup of Yum
  1. Preheat the oven to 350 degrees and add muffin liners to two 12-cup muffin tins.
  2. Sift together the flour, baking powder and salt then set aside.
  3. To your stand mixer add the butter and sugar and beat them together until light and fluffy on medium speed, 2-3 minutes, then add in the eggs one at a time 15 seconds apart along with the coconut extract then lower the speed to low.
  4. Add the flour mixture, lime juice, and milk, alternating a little of each at a time.
  5. Add in the green food coloring until you get a beautiful lime color, starting with just a drop at a time.
  6. Pour into the muffin pans 3/4 of the way full.
  7. Baked for 18-22 minutes until a toothpick comes out clean.
  8. Cool cupcakes completely before frosting.
Key Lime Cream Cheese Frosting:
  1. Add the cream cheese, butter, sour cream, lime juice, and vanilla to a stand mixer and beat until light and fluffy.
  2. Add in the powdered sugar one cup at a time until smooth and incorporated.
  3. Add in the green food coloring until you get a beautiful lime color, starting with just a drop at a time and stir.
  4. Beat for 3 minutes until light and fluffy.
To Finish:
  1. Brush with the cupcake tops condensed milk.
  2. Pipe swirly mounds onto the top of the cupcakes.
  3. Add thin slices of limes to the cake, cutting through one segment and twisting to create an "s" shape.
  4. Grate fresh lime zest over the cake as a garnish (if you used key lime juice that is bottled, just zest from a normal lime).

Nutrition Information

Calories 438kcal (22%) Carbohydrates 59g (20%) Protein 5g (10%) Fat 21g (32%) Saturated Fat 13g (65%) Polyunsaturated Fat 1g Monounsaturated Fat 6g Trans Fat 0.4g Cholesterol 82mg (27%) Sodium 201mg (8%) Potassium 109mg (3%) Fiber 0.3g (1%) Sugar 48g (96%) Vitamin A 755IU (15%) Vitamin C 1mg (1%) Calcium 91mg (9%) Iron 1mg (6%)

Nutrition Facts

Serving: 24servings

Amount Per Serving

Calories 438

% Daily Value*

Calories 438kcal 22%
Carbohydrates 59g 20%
Protein 5g 10%
Fat 21g 32%
Saturated Fat 13g 65%
Polyunsaturated Fat 1g 6%
Monounsaturated Fat 6g 30%
Trans Fat 0.4g 20%
Cholesterol 82mg 27%
Sodium 201mg 8%
Potassium 109mg 2%
Fiber 0.3g 1%
Sugar 48g 96%
Vitamin A 755IU 15%
Vitamin C 1mg 1%
Calcium 91mg 9%
Iron 1mg 6%

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