Easy Key Lime Pie Bars Recipe

If you're craving a dessert that offers the perfect balance of tangy and sweet, these Easy Key Lime Pie Bars are a must-try! They feature a buttery graham cracker crust and a creamy, zesty key lime filling, all cut into convenient, bite-sized bars. These bars are perfect for summer gatherings, potlucks, or any occasion that calls for a refreshing dessert. Stick around as we walk you through the ingredients, variations, and tips to create the perfect Key Lime Pie Bars!

What Are Key Lime Pie Bars?

Key Lime Pie Bars are a simplified version of the classic Key Lime Pie, a creamy dessert known for its vibrant and tart key lime flavor. These bars are made with a graham cracker crust and a rich, creamy filling of key lime juice, sweetened condensed milk, and egg yolks. Once baked and chilled, they are cut into bars, making them easy to serve and enjoy. This recipe is perfect if you're looking for a no-fuss dessert that still delivers a wow factor.

Ingredients List for Easy Key Lime Pie Bars

These Key Lime Pie Bars require just a few simple ingredients that you may already have in your kitchen:

For the Graham Cracker Crust:

• 1 ½ cups graham cracker crumbs (about 12 full graham crackers)
• ¼ cup granulated sugar
• ½ cup unsalted butter, melted

For the Key Lime Filling:

• 1 can (14 oz) sweetened condensed milk
• ½ cup key lime juice (fresh or bottled)
• 2 teaspoons key lime zest (optional, for extra flavor)
• 3 large egg yolks
• 1 teaspoon vanilla extract (optional)

Toppings (Optional):

• Whipped cream
• Additional lime zest for garnish

Substitutions and Variations

Don't worry if you don’t have key lime juice or prefer to tweak the recipe a bit! Here are some substitutions and variations you can try:

1. Key Lime Substitutes: If you can’t find key limes, you can substitute regular Persian lime juice, though it will have a slightly less intense flavor. For extra tartness, you can mix lemon juice with lime juice (in a 1:1 ratio).
2. Crust Alternatives: While graham crackers are the traditional choice, you can use digestive biscuits, gingersnaps, or vanilla wafers for the crust. For a gluten-free version, simply substitute gluten-free graham crackers or almond flour.
3. Lime vs. Lemon: For a different citrus twist, try swapping out the lime juice for lemon juice to make Lemon Pie Bars.
4. Sweetness Variations: If you want to cut back on sugar, you can use a reduced-sugar sweetened condensed milk. Be aware that this may slightly alter the flavor.
5. Topping Ideas: Besides whipped cream, you can sprinkle toasted coconut or crushed graham crackers on top for extra texture and flavor.

Step-by-Step Cooking Instructions

Let’s get started on making these delectable Key Lime Pie Bars! This easy recipe is broken down into two main parts: preparing the crust and making the filling.

Step 1: Prepare the Graham Cracker Crust

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Line an 8x8-inch square baking dish with parchment paper, leaving an overhang on the sides for easy removal of the bars after baking.
2. Make the Crust: In a medium bowl, combine the graham cracker crumbs, granulated sugar, and melted butter. Stir until the crumbs are fully coated with butter and the mixture resembles wet sand.
3. Press the Crust: Pour the graham cracker mixture into the prepared baking dish. Use the back of a spoon or the bottom of a measuring cup to press the crumbs evenly into the pan, creating a smooth, compact layer.
4. Bake the Crust: Bake the crust for 8-10 minutes, or until it’s lightly golden. Remove from the oven and let it cool slightly while you prepare the filling.

Step 2: Prepare the Key Lime Filling

1. Mix the Filling: In a large bowl, whisk together the sweetened condensed milk, key lime juice, key lime zest (if using), egg yolks, and vanilla extract (optional). Whisk until the mixture is smooth and well combined. The filling will thicken slightly as you mix it.
2. Pour the Filling: Pour the key lime filling over the pre-baked graham cracker crust, spreading it out evenly with a spatula.
3. Bake: Return the dish to the oven and bake for 15-18 minutes, or until the filling is set and slightly jiggly in the center. The edges should look firm, but the center will continue to firm up as it cools.

Step 3: Cool and Chill

1. Cool at Room Temperature: Allow the bars to cool at room temperature for about 30 minutes.
2. Chill in the Refrigerator: Once the bars have cooled, place them in the refrigerator for at least 2 hours (or overnight) to fully set. This step is crucial for achieving that perfect, creamy texture.

How to Cook Key Lime Pie Bars: A Step-by-Step Guide

1. Prepare the Crust: Mix graham cracker crumbs with melted butter and sugar, then press into the pan.
2. Bake the Crust: Pre-bake the crust for a few minutes to get it nice and crisp.
3. Make the Filling: Whisk together the key lime juice, sweetened condensed milk, egg yolks, and zest.
4. Bake the Bars: Pour the filling over the crust and bake until set.
5. Chill to Set: Let the bars chill for at least 2 hours before slicing.

Common Mistakes to Avoid

1. Not Chilling Long Enough: Chilling the bars for at least 2 hours is essential to ensure they set properly. If you cut them too soon, the filling may be too soft and runny.
2. Overbaking the Filling: Be careful not to overbake the key lime filling. You want the center to be slightly jiggly when you remove it from the oven. It will firm up as it cools.
3. Not Using Fresh Lime Zest: Zest adds a lot of flavor to the filling, so don't skip this step if you have fresh limes on hand. It gives the bars an extra citrusy punch.
4. Skipping the Parchment Paper: Parchment paper makes it much easier to lift the bars out of the pan and cut them neatly. Don’t skip lining the pan!

Serving and Presentation Tips

Once your Key Lime Pie Bars are fully set, it's time to slice and serve them! Here’s how to serve these tangy, delicious bars in style:

How to Serve Key Lime Pie Bars

• Carefully lift the bars out of the pan using the parchment paper overhang.
• Cut the bars into squares or rectangles using a sharp knife. Wipe the knife between cuts for clean slices.
• Serve cold for the best flavor and texture.

Presentation Ideas for Key Lime Pie Bars

• Whipped Cream Topping: Pipe or dollop fresh whipped cream onto each bar for a classic touch. You can add a little lime zest on top for extra flair.
• Lime Slices or Zest: Garnish with thin slices of lime or sprinkle extra zest over the bars before serving.
• Sprinkle with Graham Cracker Crumbs: Crush a few extra graham crackers and sprinkle them over the top for added texture.

Key Lime Pie Bar Recipe Tips

• Use Fresh Limes: If possible, use fresh key limes for the most authentic flavor. If you can’t find key limes, regular limes will work, but try to add the zest for extra flavor.
• Room Temperature Egg Yolks: Using room temperature egg yolks helps create a smoother, creamier filling.
• Don’t Rush the Chilling Process: Allow the bars to chill for at least 2 hours to ensure they are fully set before cutting.

Frequently Asked Questions (FAQs)

Q: Can I use bottled key lime juice?
A: Yes! Bottled key lime juice is a convenient alternative to fresh key limes and still provides that signature tart flavor. Just be sure to use a good-quality brand.

Q: How long do these Key Lime Pie Bars last?
A: These bars can be stored in an airtight container in the refrigerator for up to 3 days. You can also freeze them for up to 1 month, just thaw in the fridge before serving.

Q: Can I make these bars gluten-free?
A: Yes! Simply substitute the graham cracker crumbs with gluten-free graham crackers or use an almond flour crust as a gluten-free alternative.

Q: Can I use a different citrus juice?
A: Absolutely! This recipe works well with lemon juice or even a mix of citrus juices, like lemon and lime, for a different flavor twist.

Conclusion

These Easy Key Lime Pie Bars are the perfect dessert for any occasion. With their buttery graham cracker crust and tangy, creamy key lime filling, they’re a crowd-pleasing treat that’s simple to make and even easier to eat. Whether you’re serving them at a summer BBQ, a holiday party, or just indulging in a sweet treat at home, these bars are sure to impress. Follow the step-by-step guide and tips, and you’ll have the perfect Key Lime Pie Bars in no time!

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