These Key Lime Pie Bars are the perfect combination of tart and sweet, making them a delightful treat for any occasion. Whether you’re hosting a summer barbecue or simply looking for a refreshing dessert to enjoy at home, these bars are easy to make and incredibly flavorful. Their creamy texture and zesty lime flavor make them stand out among other desserts, ensuring they are always a crowd favorite.

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
- For the Topping
- How to Make Key Lime Pie Bars
- Step 1: Prepare the Crust
- Step 2: Make the Filling
- Step 3: Bake the Bars
- Step 4: Prepare the Topping
- Step 5: Assemble and Serve
- How to Serve Key Lime Pie Bars
- Chilled and Fresh
- Topped with Fruit
- With a Drizzle
- On a Dessert Platter
- As Party Favors
- 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?
- Are Key Lime Pie Bars gluten-free?
- Final Thoughts
- 📖 Recipe Card
Why You’ll Love This Recipe
- Easy to Make: With just a few simple steps, you can whip up these delicious bars in no time.
- Refreshing Flavor: The key lime juice adds a bright and tangy taste that’s perfect for hot summer days.
- Versatile Dessert: Serve these bars at parties, potlucks, or as a sweet treat after dinner.
- No Baking Required: Enjoy the convenience of not having to bake with this no-fuss recipe.
- Crowd-Pleaser: These bars are sure to impress family and friends with their vibrant flavor and appealing presentation.
Tools and Preparation
Before diving into making your Key Lime Pie Bars, gather the necessary tools. Having everything ready will streamline the process and ensure a smooth baking experience.
Essential Tools and Equipment
Importance of Each Tool
- 9×13-inch baking dish: This size is ideal for even baking and cutting uniform squares.
- Electric mixer: Speeds up mixing ingredients, especially when whipping cream for toppings.
Ingredients
These perfectly tart and tangy key lime pie bars are a breeze to make and are delicious served straight from the fridge on a hot summer day!
For the Crust
- 2 cups vanilla wafer cookies, finely ground (250 g)
- 5 tablespoons unsalted butter, melted
- 2 tablespoons light brown sugar
For the Filling
- 1 tablespoon lime zest, packed (6-7 key limes)
- 5 large egg yolks
- 22 ounces sweetened condensed milk (1 14-ounce can and ¾ cup from 2nd can)
- 1 cup freshly squeezed lime juice
For the Topping
- 1 cup heavy whipping cream
- 2 tablespoons powdered sugar
How to Make Key Lime Pie Bars
Step 1: Prepare the Crust
- Preheat your oven to 350°F (175°C).
- In a mixing bowl, combine the finely ground vanilla wafer cookies, melted butter, and light brown sugar until well mixed.
- Press this mixture firmly into the bottom of your greased 9×13-inch baking dish.
- Bake for about 10 minutes or until golden brown. Remove from oven and let cool.
Step 2: Make the Filling
- In another bowl, whisk together the egg yolks until thickened slightly.
- Gradually add in the sweetened condensed milk while continuing to whisk.
- Stir in the freshly squeezed lime juice and lime zest until fully combined.
Step 3: Bake the Bars
- Pour the filling over the cooled crust in the baking dish.
- Bake for an additional 20 minutes or until set but still slightly jiggly in the center.
- Remove from oven and let it cool completely at room temperature before refrigerating.
Step 4: Prepare the Topping
- In a mixing bowl, use an electric mixer to whip heavy cream until soft peaks form.
- Gradually add powdered sugar while continuing to whip until stiff peaks form.
Step 5: Assemble and Serve
- Once chilled, cut into squares and top each with whipped cream before serving.
- Enjoy your delicious Key Lime Pie Bars!
How to Serve Key Lime Pie Bars
Key lime pie bars are a delightful treat that can be enjoyed in various ways. Here are some serving suggestions to elevate your dessert experience.
Chilled and Fresh
- Serve them straight from the fridge for a refreshing bite on a hot day.
- Garnish with a dollop of whipped cream for added richness.
Topped with Fruit
- Add fresh berries like strawberries or blueberries for a pop of color and flavor.
- Slice up kiwi or mango to complement the tartness of the key lime.
With a Drizzle
- Drizzle melted chocolate over the top for an unexpected twist.
- Use a citrus glaze made from additional lime juice and powdered sugar for extra tang.
On a Dessert Platter
- Arrange bars on a platter alongside other desserts for variety at gatherings.
- Pair with mini cupcakes or fruit tarts for an appealing spread.
As Party Favors
- Cut into small squares and package them in clear bags tied with ribbon.
- Perfect for giving as gifts at summer parties or picnics.

How to Perfect Key Lime Pie Bars
Achieving the perfect key lime pie bars requires attention to detail. Here are some tips to ensure your dessert is a hit.
- Use fresh limes: Freshly squeezed lime juice brings out the best flavor, enhancing the tartness.
- Don’t overbake: Keep an eye on the baking time to avoid dry bars. They should be set but still slightly jiggle in the center.
- Cool completely: Allowing the bars to cool at room temperature before refrigerating helps set their texture perfectly.
- Chill before serving: Refrigerate for several hours or overnight for the best flavor and texture, making them even more refreshing.
- Garnish creatively: Use lime zest or thin lime slices as garnish to make your presentation pop.
- Adjust sweetness: Taste before pouring into the crust; you can always add more sugar if you prefer sweeter bars.
Best Side Dishes for Key Lime Pie Bars
Pairing key lime pie bars with complementary side dishes can enhance your dessert experience. Here are some great options:
- Coconut Macaroons – Chewy and sweet, these cookies balance well with the tartness of key lime.
- Fruit Salad – A mix of seasonal fruits adds freshness and lightness to your dessert table.
- Grilled Pineapple – The caramelized flavors of grilled pineapple offer a delicious contrast to the tangy bars.
- Lemon Sorbet – A refreshing palate cleanser that pairs beautifully with key lime flavors.
- Chocolate Dipped Strawberries – The rich chocolate complements the tartness of the pie bars perfectly.
- Whipped Cream – A classic topping that adds creaminess; serve it on the side for guests to add as they wish.
- Cheesecake Bites – Rich and creamy, they provide another layer of indulgence alongside your pie bars.
- Mint Tea – A soothing beverage that cleanses the palate after enjoying these delightful treats.
Common Mistakes to Avoid
Making key lime pie bars can be simple, but there are common pitfalls that can ruin your dessert.
- Using the wrong type of cookies: Using cookies that aren’t vanilla wafers can affect the flavor and texture of your crust. Stick to vanilla wafers for the best results.
- Not measuring ingredients accurately: Baking is a science. Use proper measuring tools to ensure you get the right proportions for your key lime pie bars.
- Overbaking the filling: Overbaking can lead to a rubbery texture. Keep an eye on them and remove them from the oven when they’re set but still slightly jiggly in the center.
- Skipping the chilling time: Allowing your bars to chill helps them set properly. Don’t rush this step if you want nice, clean slices.
- Using bottled lime juice: Freshly squeezed lime juice gives a brighter flavor. Avoid bottled juice for the best taste in your key lime pie bars.

Storage & Reheating Instructions
Refrigerator Storage
- Store your key lime pie bars in an airtight container in the refrigerator.
- They will stay fresh for up to one week.
Freezing Key Lime Pie Bars
- Wrap each bar individually in plastic wrap before placing them in a freezer-safe container.
- They can be frozen for up to three months.
Reheating Key Lime Pie Bars
- Oven: Preheat to 350°F (175°C) and warm for about 10 minutes.
- Microwave: Heat one bar at a time on medium power for about 15-20 seconds.
- Stovetop: Place in a non-stick skillet over low heat, covering with a lid until warmed through.
Frequently Asked Questions
Here are some common questions about making and enjoying key lime pie bars.
What are Key Lime Pie Bars?
Key lime pie bars are a delicious dessert made with a creamy key lime filling on top of a buttery crust, perfect for warm weather.
Can I use regular limes instead of key limes?
Yes, you can use regular limes if key limes are unavailable, though the flavor will be slightly different.
How do I know when my Key Lime Pie Bars are done?
They should be set but still slightly jiggly in the center when you take them out of the oven.
Can I customize my Key Lime Pie Bars?
Absolutely! You can add toppings like whipped cream or fresh fruit for extra flavor and presentation.
Are Key Lime Pie Bars gluten-free?
If you use gluten-free cookies for the crust, then yes! Just check your cookie labels to ensure they fit your dietary needs.
Final Thoughts
These key lime pie bars are not only easy to make but also incredibly refreshing! Their sweet-tart balance makes them perfect for summer gatherings or any occasion. Feel free to customize them with toppings or add-ins like coconut or crushed nuts. Enjoy experimenting with this delightful recipe!
Did You Enjoy Making This Recipe? Please rate this recipe with ⭐⭐⭐⭐⭐ or leave a comment.
📖 Recipe Card
PrintKey Lime Pie Bars
Indulge in the refreshing taste of Key Lime Pie Bars, a delightful dessert that perfectly balances tartness and sweetness. These creamy bars are made with zesty key lime juice and a buttery vanilla wafer crust, making them an ideal treat for summer gatherings or any occasion. With no baking required, this easy-to-follow recipe ensures you can whip up these vibrant bars in no time. Garnish with whipped cream and fresh fruit for an impressive presentation that will surely impress your guests. Enjoy the tropical flavors of these homemade treats that capture the essence of classic American desserts.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: Makes approximately 12 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 2 cups vanilla wafer cookies, finely ground
- 5 tablespoons unsalted butter, melted
- 2 tablespoons light brown sugar
- 1 tablespoon lime zest
- 5 large egg yolks
- 22 ounces sweetened condensed milk
- 1 cup freshly squeezed lime juice
- 1 cup heavy whipping cream
- 2 tablespoons powdered sugar
Instructions
- Preheat your oven to 350°F (175°C). In a mixing bowl, combine ground vanilla wafers, melted butter, and brown sugar. Press this mixture into a greased 9×13-inch baking dish and bake for 10 minutes. Let cool.
- In another bowl, whisk egg yolks until thickened. Gradually add sweetened condensed milk while whisking, then stir in lime juice and zest until fully combined.
- Pour the filling over the cooled crust and bake for an additional 20 minutes or until set but slightly jiggly in the center. Cool completely at room temperature before refrigerating.
- For the topping, whip heavy cream with powdered sugar until soft peaks form. Once chilled, cut into squares and top each piece with whipped cream.
Nutrition
- Serving Size: 1 bar (70g)
- Calories: 220
- Sugar: 18g
- Sodium: 95mg
- Fat: 11g
- Saturated Fat: 7g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 29g
- Fiber: 0g
- Protein: 3g
- Cholesterol: 60mg





