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5 from 2 votes

Key Lime Pie Cupcakes

These Key Lime Pie Cupcakes are light and fluffy, filled with sweet key lime curd and topped with a whipped vanilla lime frosting!
Prep Time20 mins
Cook Time25 mins
Total Time45 mins
Course: Dessert
Servings: 24



  • 1 box White Cake Mix
  • 1/3 cup Vegetable Oil
  • 3 Large Eggs
  • 1 cup Key Lime Yogurt not light
  • 1/4 cup Key Lime Juice
  • Zest of 4 Key Limes
  • 1/2 cup Milk
  • 1 tsp Vanilla Extract


  • Key Lime Curd Recipe


  • 2 cups Heavy Cream
  • 1/2 cup Confectioners' Sugar
  • 1/3 cup Instant Vanilla Pudding Mix dry
  • 1/4 cup Key Lime Juice
  • Zest of 4 Key Limes
  • Topping:
  • Additional Zest
  • Key Lime Slices



  • Preheat oven to 350 F.
  • Line cupcakes pan with liners.
  • Add cupcake ingredients one by one to a mixing bowl or stand mixer, mixing between each addition.
  • Fill cupcake liners 2/3 full and bake for 17-20 minutes until toothpick comes clean.
  • Transfer cupcakes to a cooling rack and allow to cool completely.
  • Meanwhile, prepare Homemade Key Lime Curd.
  • Once cupcakes have cooled and curd is finished, use a cupcake corer to remove the centers of the cupcakes and spoon in some curd to the center of each cupcake.
  • Combine frosting ingredients in a large bowl or stand mixer fitted with whisk attachment and beat until light and fluffy.
  • Pipe frosting onto curd filled cupcakes and top with extra zest and a lime slice.


If you can't find Key Lime Yogurt, plain or vanilla can be used as a substitute, as well as sour cream.