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    Home » Cookies

    Key Lime Cookies

    Published: Aug 4, 2022 Updated: Aug 4, 2022 by Alison Hope · This post may contain affiliate links · Leave a Comment

    Jump to Recipe Print Recipe
    Key Lime Cookies

    These key lime cookies are soft and delicious and simply melt in your mouth! They are loaded with key lime flavor and topped with a tangy lime frosting.

    Stack of three key lime cookies.

    Say hello to your new favorite cookie!

    These key lime cookies are ultra soft and gorgeous with the most beautiful melt-in-your-mouth texture.

    The lime flavor is suble but perfect and they are topped with a lovely lime buttercream frosting that has just enough tang to offset the sweetness to perfection.

    You’ll also love our lemon cookies and our coconut cookies.

    Ingredients For The Cookies:

    Ingredients for key lime cookies.

    Ingredient Notes

    • Lime juice – should ideally be freshly squeezed. Key limes OR regular limes are both perfect to use in this recipe.
    • Lime zest – adds delicious flavor to the cookies. We use a zester which makes quick work of zesting limes.
    • Butter – should ideally be softened. If you forget to soften it, then cut it into cubes and just beat it with the sugar for a minute or two longer.
    • Cornstarch – softens the cookies for an ultra soft texture.

    Ingredients For The Frosting:

    Frosting ingredients for key lime cookies.

    Frosting Ingredient Notes

    • Butter – as with the cookies, it’s ideal if the butter is softened, but if you forget to take it out the fridge in time then no problem. Just cut it into cubes and beat it in the stand mixer for a minute or two extra to soften it before you add the other ingredients.
    • Lime juice – should be freshly squeezed for the best flavor. Key limes or regular limes are both fine to use.
    Key lime cookies on a white plate.

    How To Make Key Lime Cookies

    Full instructions and measurements can always be found in the recipe card at the bottom of the post. This is a summary of the process to go along with the process photos.

    Cookies:

    • Add softened butter and white granulated sugar to the bowl of your stand mixer and cream them together until smooth.
    Butter and sugar added to stand mixer and creamed together.
    • Add fresh lime juice and an egg and mix them in.
    Lime juice and egg added to stand mixer and mixed in.
    • In a separate bowl add all purpose flour, cornstarch, baking powder and salt and whisk them together.
    Dry ingredients added to mixing bowl and whisked.
    • Add the dry ingredients in with the wet and mix it by hand (don’t use the stand mixer for this) into a cookie dough.
    Dry ingredients added to wet and mixed into a cookie dough.
    • Add the lime zest and form it into a big ball of dough.
    Lime zest added to cookie dough and mixed in.
    • Break off pieces of the dough and roll them into balls. Aim to get 20 balls of cookie dough from the batch.
    • Place the balls evenly on a large parchment lined baking sheet.
    Cooke dough rolled into balls and placed onto a parchment lined baking sheet.
    • Flatten the balls either with your hands or by using the base of a glass. Place a square of parchment paper on top of the cookie so that the glass doesn’t stick and then gently press down on it with the base of the glass to flatten.
    • Bake at 350°F for 10 minutes.
    • Leave them on the baking sheet to cool down and firm up before frosting.
    Cookies flattened with the base of a glass and then baked.

    Frosting:

    • Add softened butter to your stand mixer and beat it until smooth.
    Butter added to stand mixer and beaten until smooth.
    • Add powdered sugar and lime juice and beat it in until your frosting is smooth and fluffy.
    Powdered sugar and lime juice added to stand mixer and mixed into a smooth frosting.
    • When the cookies are completely cooled, spread on the frosting.
    Frosted key lime cookies on a parchment lined baking sheet.

    Baker’s Tips

    Measure the flour correctly. For the perfect texture you need to use the exact right amount of flour. Ideally weigh it out on a food scale. The next best thing is to use the spoon and level method. Spoon the flour into your measuring cup and level off the top with a knife. Don’t pack the flour into the cup and don’t scoop it.

    Baking times. Baking for 10 minutes results in a lovely soft cookie. If you want them a little crunchier then bake them for 12 minutes.

    Key lime cookies on a white plate.

    Storing and Freezing

    Keep them stored in an airtight container at room temperature and enjoy within 2-3 days. They can also be stored in the fridge for up to a week. Let them come to room temperature before serving.

    They can also be frozen for up to 3 months.

    Stack of three key lime cookies.

    More Cookie Recipes

    1. White Chocolate Macadamia Nut Cookies
    2. Peppermint Cookies
    3. Oatmeal Chocolate Chip Cookies
    4. Pumpkin Cookies
    5. Oatmeal Raisin Cookies
    6. Meringue Cookies
    Key lime cookies in a stack with the top cookie broken in half.

    Did you make this recipe? Be sure to leave a comment and rating below.

    Key lime cookies in a stack.

    Key Lime Cookies

    These key lime cookies are soft and delicious and simply melt in your mouth! They are loaded with key lime flavor and topped with a tangy lime frosting.
    5 from 1 vote
    Print Pin Rate
    Course: Cookies, Dessert
    Cuisine: American
    Diet: Vegetarian
    Prep Time: 15 minutes
    Cook Time: 10 minutes
    Total Time: 25 minutes
    Servings: 20
    Calories: 194kcal
    Author: Alison

    Ingredients

    • ½ cup Butter (114g) Lightly Salted, Softened
    • ¾ cup White Granulated Sugar (150g)
    • 1 Tablespoon Lime Juice Freshly Squeezed
    • 1 Large Egg
    • 2 cups All Purpose Flour (250g)
    • 2 teaspoons Cornstarch
    • 1 teaspoon Baking Soda
    • ¼ teaspoon Salt
    • 1 Tablespoon Lime Zest

    Lime Frosting:

    • ⅓ cup Butter (75g) Lightly Salted, Softened
    • 2 cups Powdered Sugar (240g)
    • 1 ½ Tablespoons Lime Juice Freshly Squeezed

    Instructions

    • Preheat the oven to 350°F (180°C) and line a large baking sheet with parchment paper.
    • Add softened butter and white granulated sugar to the bowl of your stand mixer and cream them together until smooth.
    • Add fresh lime juice and an egg and mix them in.
    • In a separate bowl add all purpose flour, cornstarch, baking powder and salt and whisk them together.
    • Add the dry ingredients in with the wet and mix it by hand (don't use the stand mixer for this) into a cookie dough.
    • Add the lime zest and form it into a big ball of dough.
    • Break off pieces of the dough and roll them into balls. Aim to get 20 balls of cookie dough from the batch.
    • Place the balls evenly on a large parchment lined baking sheet.
    • Flatten the balls either with your hands or by using the base of a glass. Place a square of parchment paper on top of the cookie so that the glass doesn't stick and then gently press down on it with the base of the glass to flatten.
    • Bake for 10 minutes.
    • Leave them on the baking sheet to cool down and firm up before frosting.

    Frosting:

    • Add softened butter to your stand mixer and beat it until smooth.
    • Add powdered sugar and lime juice and beat it in until your frosting is smooth and fluffy.
    • When the cookies are completely cooled, spread on the frosting.

    Notes

    1. Butter – should ideally be softened. If you forget to soften it, then cut it into cubes and beat it for a minute or two longer to soften.
    2. Lime juice – should ideally be freshly squeezed. Key limes OR regular limes are both perfect to use in this recipe.
    3. Measure the flour correctly. It’s best to weigh it out on a food scale. Otherwise use the spoon and level method. Spoon the flour into your measuring cup and level off the top with a knife. Don’t pack the flour into the cup and don’t scoop it.
    4. Baking time. Baking for 10 minutes results in a lovely soft cookie. If you want them a little crunchier then bake them for 12 minutes.
    5. Storing: Keep them stored in an airtight container at room temperature and enjoy within 2-3 days. They can also be stored in the fridge for up to a week. Let them come to room temperature before serving.
    6. Freezing: They can also be frozen for up to 3 months.

    Nutrition

    Serving: 1Cookie | Calories: 194kcal | Carbohydrates: 29g | Protein: 2g | Fat: 8g | Saturated Fat: 5g | Polyunsaturated Fat: 0.4g | Monounsaturated Fat: 2g | Trans Fat: 0.3g | Cholesterol: 30mg | Sodium: 149mg | Potassium: 22mg | Fiber: 0.4g | Sugar: 19g | Vitamin A: 251IU | Vitamin C: 1mg | Calcium: 6mg | Iron: 1mg
    DID YOU MAKE THIS RECIPE?Rate it & leave your feedback in the comments section below, or tag @gimmethatflavor on Instagram and hashtag it #gimmethatflavor
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    About Alison Hope

    Hi I'm Alison, I'm the voice and cook behind Gimme That Flavor. I am a big time foodie and probably cooking up a storm in my kitchen right now! I'm also a cat mom. And a sweet tooth. Binge watcher of TV shows. Terrible sleeper always staying up too late....Find out more about me here.

    Gimme That Flavor is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. This site may contain some of these links to Amazon.com. If you make a purchase through one of those links, Gimme That Flavor will receive a small commission from the purchase at no additional cost to you.

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    Alison Hope Author

    Hi! I'm Alison! Big time foodie. I'm probably cooking up a storm in my kitchen right now. I'm also a cat mom. And a sweet tooth. Binge watcher of TV shows. Terrible sleeper always staying up too late.... 

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