Scrumptious Recipe for Key Lime Pie Cookies With Frosting On Top!
Home » COOK » Recipes » Baking » Cookies »Ever wanted key lime pie in cookie form? Well, you’ve got it with this recipe for these scrummy Key Lime Pie Cookies! They take just an hour to create and use your usual baking ingredients plus key limes and graham crackers. They look fantastic on a dessert table or as treat for family and friends.

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Key Lime Pie Cookies
The full ingredients list and instructions are found in the printable recipe card at the end of this post. I highly recommend reading the blog post all the way through so that you don’t miss any tips or substitution suggestions, to ensure that you have all the ingredients and equipment required and understand the steps and timings involved.
If you’re looking for a delicious and refreshing cookie recipe, look no further than these amazing key lime pie cookies!
Using the flavors of a classic key lime pie, the combination of lime and sugar makes for a perfect balance of sweet and tart, while the frosting on top takes them to the next level.
So if you need a summer treat, be sure to give these cookies a try!

Ingredients & Equipment Used In This Recipe
While most ingredients can be bought in grocery stores, for your convenience, any specialized or notable ingredients and equipment needed for this recipe have been linked to Amazon or other stores if available online. Staple ingredients such as oil, salt, sugar, etc., aren’t always included here as you’re likely to have those in your kitchen. The complete list of ALL ingredients with measurements is found on the recipe card.
- Fresh Produce – Key Limes – if you can’t find these locally you can use regular limes. You will need the juice and the zest.
- Dairy – Unsalted Butter, Heavy Cream (Double Cream)
- White Sugar
- Brown Sugar
- Pure Vanilla Extract – always buy good vanilla as it really does make a flavor difference.
- All-Purpose Flour – also known as Plain Flour.
- Graham Cracker Crumbs – if you can’t find these locally, you can crush up Graham Crackers into fine crumbs and use those. Alternatively, in the UK you could use Digestive Biscuits instead.
- Baking Soda – also known as Bicarbonate of Soda.
- Kosher Salt – which is essentially just a Coarse Sea Salt
- Pure Vanilla Extract – always buy good vanilla as it really does make a flavor difference.
- Special Equipment:
- 2 Piping Bags – you can use disposable or reuseable, your choice.
- Round Piping Tip – such as Wilton #12
- Star Piping Tip – such as Wilton #1M
Recipes on The Purple Pumpkin Blog use both cup measurements and/or weighted measurements. American cups and kitchen food scales are handy pieces of equipment to have in your kitchen as it means you’ll be able to make all of the different recipes on my blog. I try to give American, imperial, and metric measurements in my recipes. Please note, that you can mix cup measurements with weighted measurements, but never mix imperial (pounds, ounces, pints, etc.,) with metric (kilograms, grams, litres, etc.,).

More Recipes Using Limes
One of the hero ingredients in this dish is limes, so here are some more recipes using the same:
- How To Make a Classic Mojito Cocktail with White Rum, Lime & Mint
- Adorable Lime Buttermilk Unicorn Cupcakes with Lemon-Lime Frosting
- Mango Lime Frozen Yogurt
More Cookie Recipes
Looking for more cookies to make? Check these recipes out next:
- Stock Up the Cookie Jar with this Carrot Cake Cookies Recipe
- Make These Lion King Paw Print Cookies For Your Little Cubs!
- Jungle Cruise Cookies – Chocolate Coconut Cookies with Macadamia Nuts

How Do I Make Key Lime Pie Cookies?
Check out the printable recipe card below with full ingredients and instructions. Any demonstration photos do not print out to save your ink.

Key Lime Pie Cookies
Ingredients
For the Cookies
- 1½ cup unsalted butter softened
- ¾ cup sugar
- 1½ cup brown sugar
- 2 large eggs
- 1 Tbsp pure vanilla extract
- 4 cups all-purpose plain flour
- 3 cups graham cracker crumbs
- 2 tsp baking soda
- 1 tsp kosher salt
For the Frosting
- 2 cups unsalted butter softened
- 4 cups powdered sugar icing sugar/confectioner’s sugar
- 4 Tbsp heavy whipping cream double cream
- 1 Tbsp key lime juice
- 3 Tbsp key lime zest
For Decorating
- ½ cup graham cracker crumbs
- Half-slices of lime
SUGGESTED PRODUCTS
Instructions
- Preheat the oven to 180°C/350°F/Gas 4. Line two cookie sheets with parchment paper and set them aside.
- Using an electric handheld or standing mixer, beat the butter, sugar, brown sugar, eggs, and vanilla until combined and fluffy.
- In another bowl, place the flour, graham cracker crumbs, baking soda, and salt and whisk together.
- Gradually mix the dry ingredients into the wet ingredients and continue to beat until a dough has
formed. - Using a medium ice cream scoop, scoop dough into your hands and roll into a ball. To make even shaped cookies, I recommend using food weighing scales and weighing each piece of dough to 2.5oz/70g.
- Place the cookie balls onto the prepared cookie sheets and lightly press into a thick disk.
- Bake the cookies for 15 minutes or until lightly golden brown.
- Leave to cool for 5 minutes before transferring to a wire cooling rack to cool completely before frosting.
- To make the frosting, use an electric handheld or standing mixer and beat the butter, powdered sugar, cream, key lime juice, and zest until combined, smooth and fluffy, and holds a peak.
- Scoop 1 cup of frosting into a piping bag fitted with a star tip and set it aside.
- Soop the remaining frosting into a piping bag fitted with a round tip.
- Pipe a thick spiral of frosting around the top of the cookie starting in the center and going
around until you reach the edge. - Sprinkle some graham cracker crumbs on top.
- Using the frosting in the star-tipped bag, pipe swirls on top of each frosted cookie and insert a half-slice of lime into each swirl.
- Allow the frosting to firm up before serving. Enjoy!
Notes
- 2 Piping Bags – you can use disposable or reuseable, your choice.
- Round Piping Tip – such as Wilton #12
- Star Piping Tip – such as Wilton #1M
Nutrition
Nutritional information is always approximate and will depend on the quality of ingredients used and serving sizes. If you need exact calories and macros, please do your own calculations.
Make It A Special Dinner!
You’ve made the dessert, but what about the rest of the courses?
Here are additional recipes to create a menu for a dinner party or special meal:
- Appetizer: Garlic Parmesan Shrimp with Roasted Garlic Dip – Perfect for Sharing!
- Soup: Vichyssoise Recipe- A Chilled Creamy Leek & Potato Soup
- Salad: Classic Caesar Salad with Homemade Dressing & Croutons
- Main Dish: This Chicken Parmesan with Spaghetti Recipe is Perfect For Family Meals
- Side Dish: Crispy Zucchini Fries with Marinara Sauce – A Tasty Gluten-Free Appetizer
- Beverage: Watermelon Moscato Slushie Cocktail – Perfect for Sunny Summer Days!
There are 500+ Recipes on The Purple Pumpkin Blog for you to enjoy – please feel free to check them out too.
Linda Primmer
July 24, 2022 @ 7:09 pm
A yummy dessert. Key lime is a favorite. I am happy to feature your key lime cookie at Love Your Creativity.