Key Lime Pie Cheesecake Bars

If you’re craving a dessert that perfectly balances tangy citrus with rich, creamy cheesecake, then these Key Lime Pie Cheesecake Bars are about to become your new favorite treat. Imagine the bright zing of fresh limes, the smooth texture of cheesecake, and a buttery graham cracker crust all coming together in one delicious bar. It’s like a slice of summer sunshine captured in every bite. These bars are easy to make, wonderfully refreshing, and ideal for sharing at family gatherings, potlucks, or just because you deserve a little indulgence. Plus, they’re made with simple ingredients you probably already have in your kitchen!

Why I Love This Recipe

There’s something magical about combining the classic Key lime pie flavors with a creamy cheesecake base. This recipe stands out because it’s both luscious and bright, without being overly sweet or heavy. The graham cracker crust adds the perfect crunch and depth, while the lime zest and juice give it that unmistakable fresh citrus punch. I love how these bars can be made ahead and chilled, making them a fantastic option for stress-free entertaining. And the best part? They’re straightforward to prepare, even if you don’t consider yourself a baker. Whether you’re a cheesecake veteran or a newbie, this recipe delivers reliably delicious results every time.

Shopping List

• 1 ½ cups crushed graham crackers (for the crust)
• ⅓ cup granulated sugar (to sweeten the crust)
• ½ cup unsalted butter, melted (to bind the crust)
• 2 (8 oz) packages cream cheese, softened (for that creamy cheesecake base)
• 1 cup granulated sugar (to sweeten the filling)
• 3 large eggs (for structure and richness)
• 1 cup sour cream (adds creaminess and tang)
• ½ cup fresh lime juice (the star ingredient for zesty flavor)
• Zest of 2 limes (boosts the citrus aroma and taste)
• 1 tsp vanilla extract (for warmth and depth)
• ½ cup whipped topping (optional, for serving)

Equipment at a Glance

• 9×9-inch baking pan – to bake the bars evenly
• Mixing bowls – for combining crust and filling ingredients
• Electric mixer or hand mixer – to get that smooth, creamy filling texture
• Measuring cups and spoons – for precise ingredient amounts
• Spatula – perfect for folding and scraping bowls
• Zester or fine grater – essential for zesting the limes
• Citrus juicer (optional) – to extract fresh lime juice easily

How to Prepare Key Lime Pie Cheesecake Bars

Step 1: Prep Your Pan and Crust

Start by preheating your oven to 325°F (160°C). Line your 9×9-inch baking pan with parchment paper, leaving some overhang to lift the bars out easily later. In a medium bowl, combine 1 ½ cups of crushed graham crackers with ⅓ cup granulated sugar. Pour in the melted butter and stir until the crumbs are evenly coated and resemble wet sand. Press this mixture firmly into the bottom of your prepared pan to form an even crust layer. Bake for 8-10 minutes until lightly golden. Let it cool while you prepare the filling.

Step 2: Make the Cheesecake Filling

In a large bowl, beat together the softened cream cheese and 1 cup granulated sugar using your mixer until smooth and creamy, about 2-3 minutes. Add the eggs one at a time, mixing well after each addition to ensure everything is fully incorporated. Next, blend in the sour cream, fresh lime juice, lime zest, and vanilla extract. Mix just until combined—overmixing can add too much air, causing cracks during baking.

Step 3: Assemble and Bake

Pour the cheesecake filling evenly over the cooled graham cracker crust. Smooth the top gently with a spatula. Bake in the preheated oven for 40-45 minutes, or until the edges are set and the center slightly jiggles when you gently shake the pan. This gentle jiggle means it will finish setting as it cools, giving you a creamy, luscious texture.

Step 4: Cool and Chill

Remove the bars from the oven and allow them to cool completely at room temperature. Once cooled, cover the pan with plastic wrap or aluminum foil and refrigerate for at least 4 hours, preferably overnight. Chilling is key to developing that firm yet creamy texture that makes these bars irresistible.

Step 5: Serve and Enjoy

Use the parchment paper overhang to lift the cheesecake out of the pan. Cut into squares or rectangles, depending on your preference. For an extra touch of indulgence, top each bar with a dollop of whipped topping and a sprinkle of lime zest. These bars shine on their own but can also be paired beautifully with fresh berries or a drizzle of raspberry sauce for a colorful presentation.

Flavor-Forward Alternatives

• Swap the lime juice with lemon juice for a bright, lemony twist on the classic.
• Add a teaspoon of coconut extract to the filling for a tropical vibe.
• Top bars with crushed toasted pecans or macadamia nuts for a crunchy texture contrast.
• Incorporate a swirl of raspberry or strawberry puree on top before baking for a fruity ribbon effect.
• Use a gluten-free graham cracker crust to accommodate dietary needs without sacrificing flavor.

Slip-Ups to Skip

• Don’t overmix the cream cheese filling—this can cause cracks and a dense texture.
• Make sure your cream cheese is fully softened to prevent lumps.
• Use fresh lime juice and zest instead of bottled for the best flavor impact.
• Resist opening the oven door during baking to avoid temperature fluctuations that can cause cracking.
• Allow bars to cool completely before refrigerating to prevent condensation and soggy crust.

Storage Pro Tips

Once your Key Lime Pie Cheesecake Bars are baked and fully chilled, store them in an airtight container in the refrigerator for up to 5 days. For longer storage, wrap each bar individually in plastic wrap and freeze for up to 2 months. When ready to serve, thaw overnight in the fridge. If you want to keep that fresh whipped topping, add it just before serving to maintain its texture and flavor.

Reader Q&A

Can I use bottled lime juice instead of fresh?

While bottled lime juice can be used in a pinch, fresh lime juice provides a brighter and more vibrant flavor that really makes these bars stand out. The fresh zest also adds essential oils that bottled juice lacks.

Is it possible to make these bars dairy-free?

Yes! You can substitute the cream cheese and sour cream with dairy-free alternatives such as vegan cream cheese and coconut-based sour cream. Make sure to adjust the sweetness and lime juice slightly to get the balance right.

Can I bake these bars in a larger pan?

You can, but the baking time will need to be adjusted. Using a larger pan will make the bars thinner, so reduce the baking time slightly and keep an eye on the texture to avoid overbaking.

How do I prevent the crust from getting soggy?

Prebaking the graham cracker crust before adding the filling is crucial. This step helps set the crust and prevents it from absorbing moisture from the filling, keeping it crisp and delicious.

Healthy-ish Favorites

• Pink Strawberry Cheesecake Crumble Cookies – a fruity, crumbly dessert that’s just as delightful as these bars.
• Lemon Blueberry Cheesecake Bar Cookies – another citrusy cheesecake bar with a burst of fresh berries.
• Greek yogurt parfaits with fresh fruit and granola – a light and refreshing option.
• Chia pudding with coconut milk and lime zest – creamy with a healthy twist.

Ready, Set, Cook

Now that you have the recipe, the shopping list, and all the tips to nail these Key Lime Pie Cheesecake Bars, it’s time to roll up your sleeves and get baking. Whether you’re treating yourself after a long day or impressing guests with a show-stopping dessert, these bars are sure to deliver smiles. The balance of tangy lime and creamy cheesecake is simply irresistible. Don’t forget to garnish with whipped topping or fresh berries to make each bite even more special. Happy baking, and enjoy every luscious, zesty bite!

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