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Key Lime Cupcakes

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Light and tangy key lime cupcakes with a zesty cream cheese frosting—perfect for a refreshing dessert or party treat.

Ingredients

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  • 1 ½ cups all-purpose flour
  • 1 cup granulated sugar
  • 1 tsp baking powder
  • ½ tsp baking soda
  • ¼ tsp salt
  • 2 large eggs
  • ½ cup sour cream
  • ¼ cup vegetable oil
  • ¼ cup key lime juice (fresh or bottled)
  • 2 tsp key lime zest
  • 1 tsp vanilla extract
  • ½ cup milk (whole or 2%)
  • For frosting: 8 oz cream cheese, softened
  • ⅓ cup unsalted butter, softened
  • 2 cups powdered sugar, sifted
  • 23 tbsp key lime juice
  • Zest of 1 key lime for garnish

Instructions

  1. Preheat your oven to 350°F (175°C). Line a 12‑cup muffin pan with paper liners.
  2. In a bowl, whisk flour, sugar, baking powder, baking soda, and salt until evenly combined.
  3. In another bowl, beat eggs, then whisk in sour cream, oil, key lime juice, zest, vanilla, and milk until smooth.
  4. Pour wet ingredients into dry ingredients; stir gently until just combined. Do not overmix.
  5. Divide batter evenly among the liners, filling about two‑thirds full.
  6. Bake for 18–20 minutes, or until a toothpick inserted into the center comes out clean.
  7. Let cupcakes cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.
  8. For frosting, beat cream cheese and butter until creamy, about 2 minutes. Gradually add powdered sugar, then lime juice; beat until smooth and fluffy.
  9. Frost cooled cupcakes using a piping bag or knife; garnish each with key lime zest.

Notes

  • Use bottled key lime juice if fresh limes aren’t available—just ensure it’s pure key lime juice.
  • For extra tang, add ½ tsp pure vanilla extract to the frosting.
  • To make mini cupcakes, reduce bake time to 12–14 minutes.
  • Store cupcakes in the fridge and allow them to come to room temperature before serving.
  • Substitute low‑fat sour cream and butter for lighter versions.

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