Key lime pie bars are a delightful twist on the classic key lime pie. These bars feature a buttery graham cracker crust paired with a creamy, tart lime filling that brings a burst of flavor in every bite. Perfect for gatherings or a simple family dessert, these bars are easy to make and sure to impress!

Jump to:
- Why You’ll Love This Recipe
- Tools and Preparation
- Essential Tools and Equipment
- Importance of Each Tool
- Ingredients
- For the Crust
- For the Filling
- How to Make Key Lime Pie Bars
- Step 1: Preheat the Oven
- Step 2: Make the Crust
- Step 3: Prepare the Filling
- Step 4: Bake and Chill
- Step 5: Serve
- How to Serve Key Lime Pie Bars
- With Fresh Whipped Cream
- Garnished with Lime Zest
- Served with Berries
- On a Dessert Platter
- Paired with Ice Cream
- Chilled for Refreshment
- How to Perfect Key Lime Pie Bars
- Best Side Dishes for Key Lime Pie Bars
- Common Mistakes to Avoid
- Storage & Reheating Instructions
- Refrigerator Storage
- Freezing Key Lime Pie Bars
- Reheating Key Lime Pie Bars
- Frequently Asked Questions
- What are Key Lime Pie Bars?
- Can I use regular limes instead of key limes?
- How do I know when my Key Lime Pie Bars are done?
- Can I customize my Key Lime Pie Bars?
- Final Thoughts
- 📖 Recipe Card
Why You’ll Love This Recipe
- Easy Preparation: With simple steps and minimal ingredients, these key lime pie bars can be whipped up in no time.
- Refreshing Flavor: The combination of key lime juice and zest gives these bars a bright, zesty flavor that is irresistible.
- Versatile Serving Options: Enjoy them chilled for dessert or serve at picnics and parties; they are perfect for any occasion.
- Make Ahead: These bars can be made in advance and stored in the refrigerator, making them ideal for busy days.
- Crowd-Pleasing Dessert: With each slice packed with flavor, your guests will be asking for seconds!
Tools and Preparation
To prepare these delicious key lime pie bars, you’ll need some essential kitchen tools. Having the right tools ensures everything goes smoothly as you create this treat.
Essential Tools and Equipment
- Food processor
- 9×9-inch pan
- Mixing bowls
- Hand mixer or stand mixer
- Measuring cups and spoons
Importance of Each Tool
- Food processor: It simplifies crushing graham crackers into fine crumbs quickly and easily.
- Mixing bowls: Having multiple mixing bowls helps keep your ingredients organized during preparation.
- Hand mixer or stand mixer: These tools make blending the cream cheese and condensed milk effortless for a smooth filling.

Ingredients
To make these delicious key lime pie bars, gather the following ingredients:
For the Crust
- 15 sheets graham crackers (or 30 squares)
- 2 tablespoons sugar
- pinch salt
- 6 tablespoons unsalted butter (melted)
For the Filling
- 6 ounces cream cheese (room temperature)
- 1 (14-ounce) can sweetened condensed milk
- 4 egg yolks
- 1 tablespoon lime zest
- ½ cup key lime juice (or regular lime juice)
- ½ teaspoon vanilla extract
How to Make Key Lime Pie Bars
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Prepare a 9×9-inch pan by lining it with aluminum foil or parchment paper for easy removal later.
Step 2: Make the Crust
- In a food processor or using a rolling pin in a large Ziploc bag, crush the graham crackers until fine crumbs form.
- In a medium mixing bowl, combine the graham cracker crumbs, sugar, salt, and melted butter. Mix until well combined.
- Press the mixture evenly into the bottom of the prepared pan. Bake in the preheated oven for about 10 minutes until set.
Step 3: Prepare the Filling
- In a large mixing bowl, beat the cream cheese using a hand mixer or stand mixer until smooth and creamy.
- Gradually add in the sweetened condensed milk and mix until fully incorporated.
- Add egg yolks one at a time, mixing well after each addition. Then mix in lime zest, juice, and vanilla extract until combined.
Step 4: Bake and Chill
- Pour the filling over the hot baked crust.
- Return to the oven and bake for an additional 15-18 minutes or until set but not browned on top.
- Once done baking, remove from oven and allow to cool before refrigerating for 2-4 hours.
Step 5: Serve
Cut into squares and serve chilled. Store any leftovers in an airtight container in your refrigerator for up to 5 days.
Enjoy your delightful Key Lime Pie Bars!
How to Serve Key Lime Pie Bars
Key lime pie bars are a delightful dessert that can be enjoyed in various ways. Here are some creative serving suggestions to enhance your experience with these creamy, tart treats.
With Fresh Whipped Cream
- Top each bar with a dollop of freshly whipped cream for added richness and texture.
Garnished with Lime Zest
- Sprinkle some extra lime zest on top to enhance the citrus flavor and add a pop of color.
Served with Berries
- Accompany your bars with fresh berries like strawberries or blueberries for a refreshing contrast.
On a Dessert Platter
- Arrange the bars on a decorative platter along with other desserts for an attractive presentation at parties or gatherings.
Paired with Ice Cream
- Serve alongside a scoop of vanilla or coconut ice cream for a creamy, indulgent treat.
Chilled for Refreshment
- Enjoy the bars chilled straight from the refrigerator, making them a perfect cool dessert on hot days.
How to Perfect Key Lime Pie Bars
Creating the perfect key lime pie bars involves attention to detail. Follow these tips to ensure your dessert is a hit!
Use Fresh Juice: Always opt for fresh key lime juice if possible. It provides a brighter flavor compared to bottled options.
Room Temperature Ingredients: Ensure your cream cheese is at room temperature before mixing. This helps create a smoother filling without lumps.
Don’t Overbake: Keep an eye on the baking time. The bars should be set but still slightly jiggly in the center when you remove them from the oven.
Chill Thoroughly: Allow the bars to chill in the refrigerator for at least 2-4 hours before serving. This helps the flavors meld and improves texture.
Best Side Dishes for Key Lime Pie Bars
Pairing side dishes with key lime pie bars can elevate your dessert experience. Here are some excellent options:
Coconut Macaroons: Sweet and chewy, these tropical treats complement the tartness of key lime perfectly.
Fruit Salad: A light and refreshing fruit salad adds color and balances out the richness of the bars.
Granola Parfait: Layer yogurt, granola, and fruits in glasses for a crunchy, creamy side that contrasts nicely with the smooth pie bars.
Chocolate Dipped Strawberries: These sweet bites provide another layer of flavor that pairs wonderfully with citrus desserts.
Mango Sorbet: A scoop of mango sorbet offers a fruity, refreshing side that enhances the tropical feel of key lime.
Almond Biscotti: Crunchy and nutty biscotti make for an excellent texture contrast alongside creamy key lime pie bars.
Pineapple Upside-Down Cake: This classic cake brings together caramelized sweetness and tanginess, making it an appealing companion.
Chia Seed Pudding: A light chia pudding adds health benefits while providing a sweet yet mild flavor that complements key lime well.
Common Mistakes to Avoid
When making key lime pie bars, avoiding common pitfalls can lead to a more successful and delicious outcome.
- Bold crust: Failing to properly crush the graham crackers can result in a crumbly crust that falls apart. Use a food processor or rolling pin to achieve fine crumbs.
- Bold overbaking: Baking the filling too long can lead to a dry texture. Keep an eye on it and remove when set, not brown.
- Bold measuring ingredients: Not measuring your ingredients accurately can affect the taste and texture. Always use proper measuring tools for best results.
- Bold cooling time: Skipping the chilling time can make the bars hard to cut and affect their texture. Allow them to cool in the fridge for 2-4 hours before serving.

Storage & Reheating Instructions
Refrigerator Storage
- Store key lime pie bars in an airtight container in the refrigerator.
- They will stay fresh for up to 5 days.
Freezing Key Lime Pie Bars
- Wrap individual bars tightly in plastic wrap before placing them in a freezer-safe container.
- They can be frozen for up to 2 months.
Reheating Key Lime Pie Bars
- Oven: Preheat oven to 350°F, place bars on a baking sheet, and warm for about 10 minutes.
- Microwave: Place a bar on a microwave-safe plate and heat for 15-20 seconds until slightly warm.
- Stovetop: Use a skillet over low heat, warming the bars for about 5 minutes while covered.
Frequently Asked Questions
Here are some common questions regarding key lime pie bars.
What are Key Lime Pie Bars?
Key lime pie bars are a dessert made with a buttery graham cracker crust topped with a tangy and creamy lime filling. They are easy to serve and enjoy.
Can I use regular limes instead of key limes?
Yes, you can substitute regular limes for key limes if they are unavailable. The flavor will be slightly different but still delicious.
How do I know when my Key Lime Pie Bars are done?
The bars are done when the filling is set but not browned. A slight jiggle in the center is normal as they will continue to firm up while cooling.
Can I customize my Key Lime Pie Bars?
Absolutely! You can add toppings like whipped cream or fresh fruit slices, or even mix in coconut flakes for added flavor.
Final Thoughts
Key lime pie bars are a delightful treat perfect for any occasion. Their creamy, tart flavor combined with a buttery crust makes them irresistible. Feel free to customize your bars with various toppings or flavors to make them your own!
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Key Lime Pie Bars
- Total Time: 43 minutes
- Yield: Makes approximately 12 servings 1x
Description
Indulge in the delightful taste of Key Lime Pie Bars, a refreshing twist on the classic dessert. These bars feature a buttery graham cracker crust topped with a creamy, tangy lime filling, delivering a burst of flavor in every bite. Perfect for family gatherings, summer picnics, or simply as an everyday treat, these bars are not only easy to make but are sure to impress guests and loved ones alike. With their bright citrus flavor and smooth texture, you’ll find it hard to have just one!
Ingredients
- 15 sheets graham crackers
- 2 tablespoons sugar
- pinch salt
- 6 tablespoons unsalted butter (melted)
- 6 ounces cream cheese (room temperature)
- 1 (14-ounce) can sweetened condensed milk
- 4 egg yolks
- 1 tablespoon lime zest
- ½ cup key lime juice
Instructions
- Preheat your oven to 350°F (175°C) and line a 9×9-inch pan with parchment paper.
- In a food processor, crush the graham crackers into fine crumbs. Mix with sugar, salt, and melted butter until combined.
- Press the mixture into the bottom of the prepared pan and bake for 10 minutes until set.
- In a large bowl, beat cream cheese until smooth. Gradually mix in sweetened condensed milk, then add egg yolks one at a time.
- Stir in lime juice and zest until well combined. Pour over the crust and bake for another 15-18 minutes, until set.
- Allow to cool before refrigerating for at least 2 hours before serving.
- Prep Time: 15 minutes
- Cook Time: 28 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 210
- Sugar: 17g
- Sodium: 80mg
- Fat: 11g
- Saturated Fat: 7g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 25g
- Fiber: <1g
- Protein: 3g
- Cholesterol: 60mg