Key Lime Frosted Cookies on a bamboo tray on top of a white towel on a wooden surface (with logo overlay)

Key Lime Frosted Cookies

Bring the flavors of Key West home by making these easy and delicious Key Lime Cookies. Add lime zest to the cookies and frosting for an extra tart flavor.

Any Floridian knows the delicious flavor of Key Lime Pie! And the most popular place to get it is in Key West.

A few years ago, Justin and I went on a 5 day cruise with some very good friends. Of course, this was before any of us had kids! Our first stop was in Key West. Since we live in Florida, we didn’t pay for any excursions but just walked around the area. We visited a place called The Six-Toed Cat the few times I had been, but sadly it seems to have permanently closed.

Key lime pie on a plate from a restaurant in Key West, Florida
Key Lime Pie from The Six-Toed Cat in Key West, Florida

We have always liked the flavor of Key Lime desserts. So one day, Justin decided we needed to make some Key Lime Cookies. We used my basic sugar cookie recipe and made a lime-flavored frosting. Unfortunately, since we aren’t in Florida, we couldn’t use the actual Key Limes. But we used lime juice and lime zest to still add that tang to the sweet cookies.

History of Key Lime

Key Limes are a small, tart lime that grows naturally in the Florida Keys. These limes are best for making anything with the classic Key Lime flavoring. The juice from Key Limes has more of a yellow color to it than the green you see from limes at the grocery store year-round.

Key Lime Pie is the official state pie of Florida and there is a festival dedicated to Key Lime foods and drinks in July every year.

Src: https://en.wikipedia.org/wiki/Key_lime_pie

Step by Step

Preheat oven to 350F. In a medium bowl, combine flour and baking soda. Mix well with a wire whisk and set aside.

Stainless steel bowl with a wire whisk and dry ingredients inside

In a large bowl, blend sugars with an electric mixer at medium speed. I like to use my stand mixer for this since it’s easier to work with.

Whisk attachment to stand mixer raised to show combined sugar and brown sugar

Add butter and mix to form a grainy paste.

Stand mixer whisk with sugars and butter combined over the mixer bowl

Add eggs, vanilla, and lime zest. Mix at medium speed until light and fluffy.

Stand mixer whisk attachment raised to show sugar and butter mixture with eggs mixed in

Add the flour mixture and blend at low speed just until combined, do not overmix.

Stand mixer whisk attachment with cinnamon sugar cookie dough stuck to it over the mixing bowl of cookie dough

Scoop dough by the spoonful onto an ungreased cookie sheet or baking stone.

Baking stone with scoops of cookie dough

Bake 18-20 minutes or until golden brown. Immediately transfer with a spatula to a cool flat surface.

While the cookies cool, make the frosting by combining the softened butter and cream cheese with an electric mixer.

Large mixing bowl with creamed butter and cream cheese on a wooden surface

Beat in the vanilla extract, lime zest, and lime juice. Gradually add the powdered sugar until the frosting is smooth.

Large mixing bowl with cream cheese frosting on a wooden surface

Frost each cookie with about 1 tsp-1 tbsp of frosting. Garnish with more lime zest if desired.

Key Lime Frosted Cookies on a bamboo tray on top of a white towel on a wooden surface (vertical)

Leftovers

We stored the extra cookies in an airtight container on the counter without the frosting for about 3 days. I kept the frosting in the refrigerator in its own container. When we wanted a cookie, we frosted it at that time. The frosting must stay refrigerated, but then the cookies don’t have to be cold when you eat them. You can also frost all of the cookies and refrigerate. They won’t stack well, though, since the frosting will get on the bottom of the cookies.

Recipe

Originally Published On: June, 22, 2020

Key Lime Frosted Cookies on a bamboo tray on top of a white towel on a wooden surface

Key Lime Cookies

Bring the flavors of Key West home by making these easy and delicious Key Lime Cookies. Add lime zest to the cookies and frosting for an extra tart flavor.
Prep Time 15 minutes
Cook Time 20 minutes
Cooling Time 20 minutes
Total Time 55 minutes
Course: Dessert
Cuisine: American
Keyword: cookies, dessert, key lime, lime
Servings: 30 cookies
5 from 2 votes

Ingredients

Cookies
  • 2 1/2 cups all-purpose flour
  • 1/2 tsp baking soda
  • 1 cup brown sugar
  • 3/4 cup granulated sugar
  • 1 cup butter (softened)
  • 2 eggs
  • 2 tsp vanilla extract
  • 1 tsp lime zest
Frosting
  • 4 tbsp butter (softened)
  • 4 oz cream cheese (softened)
  • 1/4 tsp vanilla extract
  • 2 tsp lime zest
  • 1/4 tsp lime juice
  • 1 3/4 cups powdered sugar

Instructions

  • Preheat oven to 350F
  • In a medium bowl, combine flour and baking soda
  • Mix well with a wire whisk and set aside
  • In a large bowl, blend sugars with electric mixer at medium speed
  • Add butter and mix to form a grainy paste
  • Add eggs, vanilla, and lime zest
  • Mix at medium speed until light and fluffy
  • Add the flour mixture and blend at low speed just until combined, do not overmix
  • Scoop dough by the spoonful onto an ungreased cookie sheet
  • Bake 18-20 minutes or until golden brown
  • Immediately transfer with a spatula to a cool flat surface
  • While the cookies cool, make the frosting by combining the softened butter and cream cheese with an electric mixer
  • Beat in the vanilla extract, lime zest, and lime juice
  • Gradually add the powdered sugar until the frosting is smooth
  • Frost each cookie with about 1 tsp-1 tbsp of frosting
  • Garnish with more lime zest if desired
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Nutrition Facts
Key Lime Cookies
Amount Per Serving (1 cookie)
Calories 198 Calories from Fat 81
% Daily Value*
Fat 9g14%
Saturated Fat 6g30%
Cholesterol 35mg12%
Sodium 105mg4%
Potassium 32mg1%
Carbohydrates 27g9%
Fiber 1g4%
Sugar 19g21%
Protein 2g4%
Vitamin A 303IU6%
Vitamin C 1mg1%
Calcium 15mg2%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.

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When making any recipe, it’s essential to make sure you have the correct equipment. The following items are hand-selected for this recipe and are all items I have personally used and/or recommend.

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12 thoughts on “Key Lime Frosted Cookies”

  1. I love key limes! I was actually just wondering what I can bake with the key lime juice I have and this is perfect. Can’t wait to make it.

  2. This is my older daughter’s favorite dessert. I am going to share this recipe with her. She will be happy to learn about the history of key lime as well.

  3. Melanie williams

    Oh my gosh these look really yummy and I could just scoff a few of these right now. What a fab bake x

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