Key Lime Pie Cookies capture the bright, tangy flavor of key lime pie in a thick, chewy cookie. Loaded with graham cracker crumbs to echo the pie crust and finished with a creamy lime filling, these cookies are a fresh, crowd-pleasing treat.
A quick, silky filling completes each cookie so they taste just like key lime pie—perfect for parties or any time you want a zesty dessert.
This recipe was originally a slice-and-bake cookie method now featured in the cookbook “The One-Bowl Baker.”
Why you’ll love these Key Lime Cookies:
- Bright key lime flavor from fresh zest and juice.
- Graham cracker crumbs throughout the cookies to mimic the pie crust texture.
- Simple, creamy filling that comes together quickly without any awkward partial-can ingredients.
Ingredient Overview:
The ingredient list is straightforward and focused on delivering classic key lime pie flavor in cookie form.
- Key lime juice gives an authentic tartness; bottled key lime juice or regular lime juice works if needed (substitution noted below).
- Graham crackers are crushed to add both flavor and texture, with a mix of fine crumbs and small pieces for interest.
- All-purpose flour—spoon and level the flour into your measuring cup or use a scale for best results to avoid a dry dough.
- Butter—salted butter gives the best flavor, but unsalted may be used if preferred.
- Cream cheese—use full-fat, block-style cream cheese for the filling for the creamiest texture.
Ingredient Substitutions:
- Fresh lime juice: Regular fresh lime juice is a fine substitute for bottled key lime juice; adjust quantities slightly as noted in the recipe.
Fun Flavor Twist:
Try lemon, orange, or blood orange in place of lime for a different citrus profile; each will yield a tasty variation.
How to Make Key Lime Cookies:
Step 1: Make lime-zested sugar. Rub lime zest into the granulated sugar until it smells fragrant and the texture is like wet sand. This concentrates the lime flavor.
Step 2: Make the cookie dough. Cream together butter and sugars until light, then beat in eggs and vanilla. Fold in dry ingredients, then stir in the crushed graham crackers until the dough is smooth and evenly mixed.
Step 3: Roll dough balls and chill. Portion dough into balls about 70 grams each. Roll each ball in a mixture of lime-zested sugar and a little crushed graham cracker. Chill the dough balls at least 2 hours before baking.
Make-Ahead Tip:
Cookie dough can be stored in an airtight container in the fridge up to 72 hours; it can also be frozen after chilling for longer storage.
Step 4: Bake the cookies. Preheat oven to 350°F (175°C). Place 5–6 cookies on a parchment-lined baking sheet and bake for about 9 minutes. Immediately press the back of a tablespoon into the center of each cookie to form a well for the filling, then let cookies cool briefly on the sheet before transferring to a rack to cool completely.
Step 5: Make the filling. While the cookies cool, beat together full-fat cream cheese, powdered sugar, key lime juice, vanilla, and a little extra lime zest until smooth. Adjust sugar or lime juice to taste. If the filling becomes too loose from overmixing, chill briefly to firm it up.
Step 6: Fill and garnish. Spoon 1–2 tablespoons of filling into each cookie well. Finish with a sprinkle of leftover lime-sugar mixture and an optional lime slice for garnish.
Serve & Store:
Filled cookies keep in an airtight container in the refrigerator for 3–4 days. The unf illed baked cookies can be stored at room temperature for up to 24 hours before filling.
Expert Baking Tips:
Make-ahead: Bake and cool cookies, then store them unfilled at room temperature up to 24 hours. Prepare the filling up to 24 hours ahead and refrigerate until ready to use.
Measure flour properly: Spoon and level your flour or weigh it for consistent results and to avoid a dry dough.
Special Tools:
- Cookie sheet: A sturdy baking sheet lined with parchment makes baking and cleanup simple.
More Citrus Recipes to Love:
Cake & Cupcakes
Blood Orange Upside-Down Cake
Cake & Cupcakes
Triple Lemon Cupcakes
No-Bake Desserts
Easy Homemade Lime Curd
Cake & Cupcakes
Orange Dreamsicle Cake
Did you make this recipe? Leave a comment & star rating!
Click the stars in the recipe header to share feedback—ratings help support small creators.
Key Lime Pie Cookies
Ingredients
For the Cookies
- zest of 2 limes
- 3/4 cup granulated sugar (156 g)
- 1 cup salted butter, softened (226 g)
- 3/4 cup light brown sugar, packed (163 g)
- 1 1/2 tsp vanilla extract
- 2 large eggs, at room temperature
- 3 cups all-purpose flour, spooned & leveled (390 g)
- 1 tsp baking soda
- 1 tsp baking powder
- 1/4 tsp salt
- 8 whole graham crackers
For Rolling the Dough Balls
- 1/4 cup + 2 tbsp granulated sugar (78 g)
- 1 large lime, zested
- 1/2 graham cracker, crushed
For the Filling
- 6 ounces cream cheese, full fat, softened (170 g)
- 1 1/3 cups powdered sugar (150–173 g), more if desired
- 3–4 tbsp key lime juice
- 1 tsp vanilla extract
- extra lime zest for garnish
Garnish
- lime slices (optional)
Instructions
- Prep: Rub lime zest into the granulated sugar until fragrant and sandy. Crush the graham crackers in a bag with a rolling pin to leave a mix of fine crumbs and small chunks.
- Make the dough: Cream butter, then beat in both sugars until light. Add eggs and vanilla until smooth. Stir in the flour, baking soda, baking powder, and salt, then fold in the crushed graham crackers until combined.
- Roll & chill: Mix remaining lime-zested sugar with the last crushed graham cracker. Scoop 70 g dough balls, roll in the lime sugar, and chill in an airtight container at least 2 hours (up to 72 hours). After chilling, dough can be frozen for up to 2 months.
- Bake: Preheat oven to 350°F. Line baking sheets with parchment. Bake 5–6 cookies per sheet for 9–10 minutes. Press the back of a tablespoon into each warm cookie to form a well. Cool on the sheet briefly, then transfer to a rack to cool completely.
- Make the filling: Beat cream cheese until smooth. Add powdered sugar, then lime juice, vanilla, and extra zest. Adjust sweetness and acidity to taste. If filling becomes too loose, chill briefly to firm up.
- Fill: Spoon 1–2 tbsp filling into each cookie well. Garnish with leftover lime sugar and lime slices if desired.
- Serve & store: Serve immediately or refrigerate filled cookies up to 3–4 days. Unfilled baked cookies can be stored at room temperature up to 24 hours before filling.
Notes
Key lime juice: Bottled key lime juice is available in many stores. If you can’t find it, use juice from the limes you zested and add an extra teaspoon of regular lime juice to compensate.
Nutrition
Serving: 1 cookie — Calories: 327 kcal; Carbohydrates: 42 g; Protein: 4 g; Fat: 16 g; Saturated Fat: 10 g; Sugar: 23 g. Nutrition is an estimate.