Key Lime Cheesecake Bars

Name: Key Lime Cheesecake Bars
Prep time: 15 min
Cook time: 30 min
Total time: 3 h 45 min
Cuisine: American
Ingredients: 12 full-sheet graham crackers, crushed into fine crumbs; 6 tablespoons unsalted butter, melted; 1/4 cup granulated sugar; 4 ounces full-fat brick cream cheese, softened; 4 large egg yolks; 1 (14-ounce) can of sweetened condensed milk; 1/2 cup key lime juice; 2 teaspoons lime zest; Optional for garnish: whipped cream and lime slices

These Key Lime Cheesecake Bars are a bright and creamy treat that balances tangy citrus with a buttery graham crust. The filling is silky and dense from full-fat cream cheese and sweetened condensed milk, while key lime juice and lime zest add a clean, refreshing bite. Baked until just set, the center keeps a slight jiggle that gives each square a luxuriously smooth texture. The aroma is fresh and citrusy with a warm hint of baked graham from the crust. These bars are ideal for summer gatherings, potlucks, or as a light dessert after a rich meal. If you enjoy cheesecake bars with a sunny twist, you might also like a similar fall favorite like these caramel apple cheesecake bars for a change of season.

Ingredients

12 full-sheet graham crackers, crushed into fine crumbs. Use full sheets for an even crust texture.
6 Tablespoons unsalted butter, melted. Adds richness and helps bind the crust.
1/4 cup granulated sugar. Sweetens the crust and balances the lime.
4 ounces full-fat brick cream cheese, softened. Gives the filling its creamy, dense structure.
4 large egg yolks. Enrich the filling and help it set while keeping it tender.
14-ounce can of sweetened condensed milk. Adds sweetness and a silky mouthfeel.
1/2 cup key lime juice. Provides the signature tangy lime flavor. Fresh is best.
2 teaspoons lime zest. Boosts citrus aroma and brightens the flavor.
Optional for garnish: whipped cream and lime slices. For a classic finishing touch.

For more crust ideas and tips, see this caramel apple variation that uses a similar base at caramel apple cheesecake bars recipe.

Step-by-step Instructions

Preheat the oven to 350°F (177°C). Place the oven rack in the center for even baking.
Line a 9-inch square baking pan with parchment paper. Leave an overhang to lift the bars out easily.
Make the crust by grinding the graham crackers into fine crumbs. Use a food processor or place crackers in a sealed bag and crush with a rolling pin.
In a mixing bowl, combine the graham cracker crumbs, granulated sugar, and melted butter. Mix until well combined and the crumbs hold together when pressed.
Press the crumb mixture firmly into the bottom of the prepared baking pan. Use the bottom of a measuring cup for an even, compact crust.
Prebake the crust in the oven for 10 minutes. This helps it stay crisp under the filling.
In a separate bowl, beat the softened cream cheese until smooth. Scrape the sides of the bowl to avoid lumps.
Add the egg yolks one at a time, mixing well after each addition. Mix until fully incorporated and smooth.
Gradually mix in the sweetened condensed milk, key lime juice, and lime zest until the filling is smooth. Do not overmix.
Pour the filling over the pre-baked crust and return the pan to the oven. Bake for 18 to 20 minutes, or until set with a slightly jiggly center. A toothpick inserted near the center should come out mostly clean with a few moist crumbs.
Remove from the oven and allow to cool at room temperature for 30 minutes. Cooling gently helps prevent cracking.
Chill in the refrigerator for 2 to 3 hours before cutting into squares. Chilling firms the filling for clean slices.
Serve chilled, and garnish with whipped cream and lime slices if desired. For another easy bar-style cheesecake, check this quick method at another cheesecake bars recipe.

See also Pecan Dandy Do's

Recipe Details

Prep Time: 15 minutes active.
Cook Time: 30 minutes oven time total, including crust prebake and filling bake.
Total Time: About 3 hours 45 minutes, including cooling and 3 hours chilling.
Servings: Makes about 16 squares.
Calories: Approximately 220 calories per bar. This is an estimate based on the total recipe ingredients divided by 16.

Tips, Storage & Variations

Tip: Soften cream cheese at room temperature for at least 30 minutes for a lump-free filling. If short on time, microwave in 5 second intervals until slightly softened.
Tip: Press the crust firmly and evenly to avoid crumbling when slicing.
Storage: Store leftover bars in an airtight container in the refrigerator for up to 4 days.
Freezing: Freeze cooled bars in a single layer on a baking sheet, then transfer to a freezer-safe container with parchment between layers for up to 2 months. Thaw overnight in the refrigerator before serving.
Flavor variations using only existing ingredients: Increase lime zest to 1 tablespoon for extra brightness, or reduce the key lime juice slightly if you prefer a milder tartness. For a richer crust flavor, use slightly more melted butter while keeping the other quantities the same.
For more no-bake or alternative bar ideas, you may enjoy this festive option at no-bake cheesecake bars and a quick crescent roll based cheesecake trick at crescent cheesecake bars.

FAQ

Q1: Can I use regular lime juice instead of key lime juice?
A1: Yes, regular lime juice works fine and will still give a bright citrus flavor.

Q2: Do I need to use full-fat cream cheese?
A2: Full-fat cream cheese gives the best texture and richness, but lower fat versions can be used with slightly different texture.

Q3: How can I tell when the filling is done?
A3: The filling should be set around the edges with a slightly jiggly center, similar to a soft custard.

Q4: Can I make these bars ahead of time?
A4: Yes, they store well refrigerated for up to 4 days and can be chilled overnight for best slicing.

Q5: Why is my crust crumbly after baking?
A5: Press the crumbs firmly before pre-baking and ensure enough melted butter is used to bind the crumbs.

Q6: Can I use regular sweetened condensed milk?
A6: Yes, regular sweetened condensed milk is the required ingredient for the right sweetness and texture.

Conclusion

These Key Lime Cheesecake Bars are an easy way to deliver a refreshing, creamy dessert that feels special without fuss. If you want another take on citrusy bars, see this Key Lime Cheesecake Bars collection for inspiration at Key Lime Cheesecake Bars – Entertaining with Beth. For a closely related bar that focuses on a classic key lime pie flavor profile, check out this recipe for guidance at Easy Key Lime Pie Bars – Sally’s Baking Addiction. Try the recipe, share your results, and enjoy a bright, zesty dessert with friends and family.