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Key Lime Pie Cupcakes

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  • Author: Emma Delaney
  • Prep Time: 20 minutes
  • Cook Time: 20 minutes
  • Total Time: 40 minutes
  • Yield: 12 cupcakes 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

A zesty twist on a dessert classic, these Key lime pie cupcakes are soft and tangy with a graham cracker crumb base and topped with fluffy lime-infused frosting. Perfect for summer parties or citrus lovers.


Ingredients

Units Scale
  • 1 1/4 cups all-purpose flour
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/2 cup unsalted butter, softened
  • 3/4 cup granulated sugar
  • 2 large eggs
  • 1/4 cup sour cream
  • 1/4 cup whole milk
  • 1/4 cup fresh Key lime juice
  • 1 tablespoon Key lime zest
  • 1/2 teaspoon vanilla extract
  • 1/2 cup unsalted butter, softened (for frosting)
  • 4 oz cream cheese, softened
  • 2 1/2 cups powdered sugar
  • 1 tablespoon Key lime juice (for frosting)
  • 1 teaspoon lime zest (for frosting)
  • 1/2 cup crushed graham crackers (for decoration)
  • Thin lime slices or wedges (for decoration)
  • Extra lime zest for sprinkling (for decoration)

Instructions

  1. Preheat oven to 350°F (175°C) and line a cupcake pan with paper liners.
  2. In a medium bowl, whisk together flour, baking powder, baking soda, and salt.
  3. In a large bowl, beat butter and sugar until light and fluffy. Add eggs one at a time.
  4. Mix in sour cream, milk, Key lime juice, lime zest, and vanilla extract.
  5. Gradually add dry ingredients to wet ingredients and mix just until combined.
  6. Fill cupcake liners 2/3 full and bake for 18–20 minutes or until a toothpick comes out clean.
  7. Cool cupcakes completely on a wire rack.
  8. To make the frosting, beat butter and cream cheese until smooth.
  9. Add powdered sugar gradually, then lime juice and zest. Beat until fluffy.
  10. Pipe frosting onto cooled cupcakes.
  11. Roll the base of each cupcake in crushed graham crackers.
  12. Top with a slice of lime and a sprinkle of lime zest.

Notes

  • Use Key limes for authentic flavor, but regular limes can be substituted if needed.
  • Make sure cupcakes are completely cool before frosting.
  • Frosting can be made ahead and refrigerated, then whipped again before use.

Nutrition

  • Serving Size: 1 cupcake
  • Calories: 310
  • Sugar: 28g
  • Sodium: 160mg
  • Fat: 17g
  • Saturated Fat: 10g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 38g
  • Fiber: 0.5g
  • Protein: 3g
  • Cholesterol: 60mg