Key Lime Cheesecake is a creamy, tangy dessert that transports you to a tropical paradise with every slice. This delightful cheesecake combines the zesty flavor of Key limes with a smooth, rich cream cheese filling, all nestled in a buttery graham cracker crust. The moment you take a bite, you experience the perfect balance between sweet and tart, making it a captivating treat that’s sure to please family and friends. It’s an easy and comforting dessert that evokes nostalgia as you savor each mouthful. With this step-by-step recipe, you’ll create a stunning cheesecake that will be the highlight of any gathering.
Ingredients
To create this indulgent Key Lime Cheesecake, you’ll need the following ingredients:
- 1 3/4 cups graham cracker crumbs (about 12 sheets): These create a crunchy, aromatic crust that perfectly complements the creamy filling.
- 2 tablespoons granulated sugar: A touch of sweetness that enhances the crust.
- Pinch salt: Balances the flavors for a well-rounded taste.
- 6 tablespoons unsalted butter (melted): Adds richness and binds the crust together.
- 24 ounces cream cheese (at room temperature): The creamy base that delivers a luxurious texture.
- 3/4 cup granulated sugar: Sweetens the filling without overpowering it.
- 2 tablespoons cornstarch: Helps stabilize the cheesecake, giving it structure.
- Pinch salt: Enhances the overall flavor of the filling.
- 3 large eggs (at room temperature): These provide the necessary lift and richness.
- 1/2 cup sour cream: Adds creaminess and a subtle tang.
- 2/3 cup Key lime juice (bottled or fresh): Infuses the cheesecake with bright, zesty flavor.
- 1 tablespoon finely grated lime zest: Packs a punch of aromatic zestiness.
- 1 teaspoon vanilla extract: Adds warmth and depth to the flavor profile.
- 1/2 cup sour cream: For the topping, providing a creamy finish.
- 3 tablespoons confectioners’ sugar: Sweetens the topping for balance.
- Tiny splash vanilla extract (optional) (less than 1/8 teaspoon): Enhances flavor without dominating.
- Pinch finely grated lime zest (optional, plus more for garnish): Elevates the aesthetic appeal and adds a fresh note.
Step-by-Step Directions
To prepare your Key Lime Cheesecake, follow these simple steps:
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Preheat the Oven: Heat your oven to 350°F (175°C). This sets the stage for perfectly baked cheesecake.
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Prepare the Crust: In a mixing bowl, stir together the graham cracker crumbs, sugar, and salt. Add in the melted butter, mixing until the crumbs are evenly moistened. Press this mixture into the bottom and slightly up the sides of a 9-inch springform pan.
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Bake the Crust: Bake the crust for 8–10 minutes until it’s lightly golden and set. Allow it to cool while you prepare the filling.
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Make the Filling: In a large mixing bowl, use an electric mixer on medium speed to beat the cream cheese and sugar until smooth and creamy. Scrape the bowl occasionally.
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Add Cornstarch and Eggs: Mix in the cornstarch and salt. Then, add the eggs one at a time on low speed, mixing just until combined.
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Incorporate Sour Cream and Lime: Blend in the sour cream, Key lime juice, lime zest, and vanilla until smooth. The batter will be slightly loose.
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Combine Crust and Filling: Pour the cheesecake filling over the cooled crust and bake for 15 minutes.
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Lower the Temperature: Reduce the oven temperature to 200°F (95°C) and bake for an additional 2 hours to 2 hours 10 minutes. The center should just be set and no longer look wet.
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Cool Gradually: When finished, remove the cheesecake from the oven and gently run a knife around the edges to loosen. Return it to the oven, turn off the heat, and let it sit inside for 2 hours.
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Refrigerate: Chill the cheesecake for at least 6 hours (preferably overnight) for the best texture and flavor.
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Prepare the Topping: In a small bowl, stir together the sour cream, confectioners’ sugar, vanilla, and lime zest until smooth.
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Finish the Cheesecake: Spread a thin layer of the sour cream mixture over the chilled cheesecake. Chill for another 15-20 minutes to allow it to set before slicing.
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Garnish and Serve: Lightly sprinkle additional lime zest on top before serving for an extra pop of flavor.
Tips & Tricks
- For a smooth texture, ensure the cream cheese is at room temperature before mixing.
- If using fresh Key limes, zest them before juicing for maximum flavor.
- Bake the cheesecake in a water bath (wrap the springform pan in aluminum foil and place it in a larger pan filled with water) to prevent cracks.
- Chill the cheesecake overnight for the best flavor as it allows the flavors to meld beautifully.
Serving Suggestions & Pairings
This Key Lime Cheesecake is perfect for summer gatherings, birthday celebrations, and holiday feasts. Serve it chilled with fresh berries, a dollop of whipped cream, or alongside a refreshing fruit salad. A scoop of coconut sorbet or vanilla ice cream makes for an excellent pairing, adding complementary flavors.
Nutritional Information
One slice of Key Lime Cheesecake (approximately 1/12 of the cheesecake) contains about 320 calories. It typically includes:
- Calories: 320
- Total Fat: 22g
- Saturated Fat: 12g
- Cholesterol: 80mg
- Carbohydrates: 28g
- Fiber: 1g
- Sugar: 18g
- Protein: 5g
Enjoy this treat in moderation as part of a balanced diet!
Storing Tips & Variations
Store any leftover cheesecake in an airtight container in the refrigerator for up to 5 days. You can also freeze individual slices wrapped tightly in plastic wrap and aluminum foil for up to 3 months. To thaw, place in the refrigerator overnight. For variations, experiment with different citrus juices like lemon or orange, or add a swirl of fruit puree for a unique twist on flavor!
Conclusion
Make your own Key Lime Cheesecake and indulge in its creamy, tangy goodness! This recipe offers an easy path to creating a delightful masterpiece that your loved ones will enjoy. Don’t forget to share your experience and any personal twists you give it; I’d love to hear how it turns out!
FAQs
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Can I use regular limes instead of Key limes?
Yes, regular limes can be substituted, but the flavor will be slightly different. Key limes have a unique tartness that enhances the cheesecake. -
How long does the cheesecake need to chill?
It’s best to refrigerate the cheesecake for at least 6 hours, but for optimal flavor, chilling overnight is recommended. -
Can I make this cheesecake gluten-free?
Absolutely! Use gluten-free graham cracker crumbs to make the crust gluten-free. -
What should I do if my cheesecake cracks during baking?
Ensure your oven temperature is correct, and consider using a water bath in the future to help prevent cracks. -
How can I tell when the cheesecake is done?
The center should be set but slightly wobbly when you gently shake the pan. It will firm up as it cools.

Key Lime Cheesecake
Ingredients
Method
- Preheat the oven to 350°F (175°C).
- In a mixing bowl, stir together the graham cracker crumbs, sugar, and salt. Add in the melted butter and mix until evenly moistened. Press this mixture into the bottom and slightly up the sides of a 9-inch springform pan.
- Bake the crust for 8–10 minutes until lightly golden and set. Allow to cool.
- In a large mixing bowl, beat the cream cheese and sugar until smooth and creamy.
- Mix in the cornstarch and salt. Add eggs one at a time on low speed, mixing just until combined.
- Blend in sour cream, Key lime juice, lime zest, and vanilla until smooth.
- Pour the cheesecake filling over the cooled crust and bake for 15 minutes.
- Reduce the oven temperature to 200°F (95°C) and bake for an additional 2 hours to 2 hours 10 minutes.
- Cool gradually, then refrigerate for at least 6 hours (preferably overnight).
- In a small bowl, stir together the sour cream, confectioners’ sugar, vanilla, and lime zest until smooth.
- Spread the sour cream mixture over the chilled cheesecake and chill for another 15-20 minutes.
- Lightly sprinkle additional lime zest on top before serving.






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