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White Chocolate Key Lime Cookies Recipe

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4.4 from 9 reviews

These White Chocolate Key Lime Cookies are a delightful twist on classic cookies, combining tangy lime zest with sweet white chocolate chips for a refreshing, citrus-infused treat. Soft and chewy with a hint of buttery richness, they offer a perfect balance of flavors ideal for any occasion.

Ingredients

Dry Ingredients

  • 2 cups all-purpose flour
  • 1 tablespoon cornstarch
  • 1 teaspoon baking soda
  • ½ teaspoon salt

Wet Ingredients

  • 14 tablespoons unsalted butter, softened
  • ¾ cup light brown sugar
  • ¼ cup granulated sugar
  • 1 large egg
  • 2 teaspoons vanilla extract

Flavorings & Add-ins

  • Zest of 1 lime
  • 1 cup white chocolate chips

Instructions

  1. Preheat and Prepare Baking Sheets: Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper or silicone baking mats to prevent sticking and ensure even baking.
  2. Mix Dry Ingredients: In a medium bowl, whisk together the all-purpose flour, cornstarch, baking soda, and salt. This combination provides structure and lightness to the cookies.
  3. Cream Butter and Sugars: Using a stand mixer, beat the softened unsalted butter with light brown sugar and granulated sugar until the mixture becomes light and fluffy, which helps incorporate air and creates a tender cookie texture.
  4. Add Egg and Vanilla: Beat in the large egg and vanilla extract until fully combined, adding moisture and enhancing flavor.
  5. Incorporate Dry Ingredients: Gradually add the flour mixture into the wet ingredients, mixing until just combined to prevent overworking the dough.
  6. Fold in Lime Zest and White Chocolate Chips: Stir in the fresh lime zest and white chocolate chips so they are evenly distributed throughout the dough, giving each bite citrus brightness and creamy sweetness.
  7. Shape the Cookies: Roll out two heaping tablespoons of dough into a ball. Tear the ball in half; place one half torn side down on the baking sheet, then place the other half on top, leaving about two inches of space around for spreading. This layering technique creates a unique texture and shape.
  8. Bake: Place the baking sheets into the preheated oven and bake for 10 minutes or until the edges are very slightly browned. The centers will appear underbaked but will firm up as they cool.
  9. Cool on Sheet: Remove cookies from the oven and allow them to rest on the baking sheet for 5 minutes. This step lets them finish cooking gently and helps them set properly before transferring to a rack.

Notes

  • Do not overbake to keep cookies soft and chewy; edges should be just lightly browned.
  • Using fresh lime zest is key to achieving the bright citrus flavor.
  • For best results, use room temperature unsalted butter to ensure even mixing.
  • Cookies can be stored in an airtight container at room temperature for up to 4 days.
  • Optional: Chill the dough for 30 minutes before baking for thicker cookies.