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Key Lime Pie Cupcakes

Key Lime Pie Cupcakes

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Treat yourself to Key Lime Pie Cupcakes, a refreshing and delightful twist on the classic dessert. These mini cupcakes combine the tangy flavor of Key lime with a creamy frosting, all presented in an adorable cupcake form. Perfect for summer barbecues, birthday parties, or simply satisfying a sweet craving, these vibrant treats are sure to impress your guests. The light and fluffy texture, paired with a zesty lime curd filling and topped with graham cracker crumbs, makes each bite an indulgent experience. Whether you’re looking for a unique dessert idea or a fun baking project, these cupcakes are easy to make and full of flavor!

Ingredients

Scale
  • ½ cup granulated sugar
  • ¼ cup bottled Key lime juice
  • 1 large egg
  • 1 egg yolk
  • 2 Tbsp salted butter, cut into pieces and chilled
  • 1 (15–16 oz.) box white cake mix (plus required ingredients per box, usually eggs, oil, and water)
  • 1 stick (½ cup) salted butter, softened to room temperature
  • 8 oz. cream cheese, softened to room temperature
  • ¼ cup bottled Key lime juice
  • 4 cups powdered sugar (approximate; adjust to taste/consistency)
  • Graham cracker crumbs
  • Thin lime slices

Instructions

  1. Prepare the Key lime curd by whisking sugar, lime juice, whole egg, and egg yolk in a saucepan over medium-low heat until thickened. Stir in chilled butter until melted and refrigerate until cool.
  2. Preheat the oven according to cake mix instructions. Line cupcake pans with paper liners and prepare cake batter as directed on the box.
  3. Bake filled liners for 18–22 minutes until a toothpick comes out clean; let cool completely.
  4. For frosting, beat softened butter and cream cheese until smooth; add Key lime juice and powdered sugar gradually until fluffy.
  5. Once cooled, fill each cupcake well with Key lime curd and frost generously. Top with graham cracker crumbs and garnish with thin lime slices if desired.

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