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–+ servings
Closeup view of key lime cookies in a stack.

Key Lime Cookies

Freshly squeezed key lime juice and zest are the stars of these soft and delightful crinkle-style Key Lime Cookies. They're just the right blend of citrus and sweet, offering a unique twist on traditional cookies.
4.64 from 22 votes
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Course: Dessert
Cuisine: American
Keyword: Key Lime Desserts, lime desserts, Summer Cookies
Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes
Makes: 20 cookies
Author: Sues

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Ingredients

  • ½ cup (1 stick) unsalted butter, room temperature
  • 1 cup + 3 Tbsp granulated sugar, divided
  • 1 large egg
  • 1 large egg yolk
  • 3 tablespoon freshly squeezed key lime juice (from about 12 key limes)
  • 2 teaspoon key lime zest
  • 2 cups all-purpose flour
  • ½ teaspoon baking powder
  • ÂĽ teaspoon baking soda
  • ÂĽ teaspoon salt
  • 2-3 drops green food coloring or mix of yellow and blue (optional)
  • â…“ cup confectioners' sugar

Instructions

  • Preheat oven to 325 degrees and line two baking sheets with parchment paper or Silpats.
  • In the bowl of a stand mixer or in a large bowl with a hand mixer, cream together butter and 1 cup sugar until light and fluffy, 2-3 minutes.
  • Add egg, egg yolk, key lime juice, and key lime zest and mix until just combined.
  • In a separate large bowl, whisk together flour, baking powder, baking soda, and salt.
  • Pour dry ingredients into wet mixture and mix until just combined, taking care not to over-mix. Fold in green food coloring (or a mix of yellow and blue) until well combined, if desired.
  • Place remaining 3 tablespoon granulated sugar in a small bowl and place confectioners’ sugar in a separate small bowl. Using about 2 tablespoons of dough at a time, roll dough into balls. Roll each ball into granulated sugar, followed by confectioners’ sugar. Place on prepared baking sheets about 2 inches apart.
  • Bake cookies for 15-17 minutes, until set. They should still be soft. Let cookies cool in pan for a couple minutes before moving to rack to cool completely.

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