Go Back
Batch of freshly baked Key Lime Cookies on a cooling rack

Key Lime Cookies

Delicious and chewy cookies that capture the refreshing flavor of Key lime pie, perfect for any occasion.
Prep Time 30 minutes
Cook Time 12 minutes
Total Time 42 minutes
Course Dessert, Snack
Cuisine American, Baking
Servings 24 cookies
Calories 120 kcal

Ingredients
  

For the cookies

  • ½ cup unsalted butter, softened to room temperature one stick
  • 1 large egg
  • ¾ cup sugar
  • ¼ cup light brown sugar
  • 1 tsp vanilla extract
  • 2-3 tsp key lime zest
  • 1 ¾ cups all-purpose flour (219g)
  • ½ tsp baking soda
  • ½ tsp salt

For the frosting

  • 1 cup powdered sugar
  • 1 tbsp key lime juice
  • 1 tbsp milk
  • ¼ tsp vanilla for the frosting
  • Pinch of salt optional, for the frosting
  • ½ tsp key lime zest for garnishing

Instructions
 

Preparation

  • Start by gathering all your ingredients. Make sure the butter is softened to room temperature.
  • In a large mixing bowl, cream together the softened unsalted butter, sugar, and light brown sugar until fluffy and light using an electric mixer on medium speed for 2-3 minutes.
  • Add in the large egg, vanilla extract, and key lime zest. Beat on medium speed until combined.
  • In a separate bowl, whisk together the flour, baking soda, and salt. Gradually incorporate this into the wet mixture.
  • Form the cookie dough, adjusting with more flour if too wet, and chill in the refrigerator for 30 minutes.
  • Preheat your oven to 350°F (175°C).
  • Once the dough has chilled, scoop and shape into balls, spacing them 2 inches apart on a parchment-lined baking sheet.
  • Bake in the preheated oven for 10-12 minutes until edges are lightly golden.
  • Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack.
  • Prepare the frosting by mixing powdered sugar, key lime juice, milk, and a pinch of salt until smooth.
  • Once cooled, frost the cookies and garnish with a sprinkle of key lime zest.

Notes

Store cookies in an airtight container at room temperature for up to one week, or freeze for longer storage. To reheat, microwave for 10-15 seconds to refresh the cookie texture.
Keyword Baking, Cookies, Dessert Recipe, Key lime cookies, Summer Treat