Key Lime Cheesecake Bars

Key limes are in season and one of my favorite ways to use them up is in these Cheesecake Bars. They are easy to make, rich and creamy with just the right amount of tartness coming from the key limes.

Add a dollop of whipped cream and a slice of lime and they make a festive dessert for Easter or Mother’s Day. Also great for baby and bridal showers! For another great key lime dessert try my Key Lime Pie Cheesecake mash-up!

a cheesecake bar with whipped topping and lime garnish.
Elevate the presentation with a dollop of whipped cream and a slice of key lime.

The Flavor and Texture

  • These bars have a luscious creamy texture coming from the ratio of cream cheese to eggs.
  • And the flavor is sweet and tart at the same time!
  • The homemade whipped cream on top acts as a great balance between the flavors and looks so festive too.
a bite of cheesecake on a fork to show the creamy texture.
The texture is smooth a creamy with a wonderful tart flavor.

Ingredients:

  • Key Limes I love to use key limes for this recipe because they are floral and fruity and not as sour. You can substitute limes in this recipe but add 1/4 cup more sugar to balance out the tartness. Be sure to save 4-5 key limes for the garnishing.
  • Cream Cheese I use brick cheesecake as opposed to whipped cream cheese, it’s better for cream cheese bars to make them firmer and easier to slice. For a fall cream cheese bar recipe try my Pumpkin Spice Cream Cheese Bars.
  • Flour To avoid having to bake these in a water bath, I add a little bit a flour. This gives them structure and avoids cracking.
  • Eggs + Egg Yolk I use a combination of eggs and one egg yolk for the best creamiest texture.
  • Sugar white granulated sugar will dissolve the best.
  • Vanilla Extract to add a little depth of flavor and sweetness.
  • Salt to heighten the flavors. I use kosher salt in all my recipes because it’s “flavor enhancing” without being too salty.
  • Graham Crackers for the crust. But you could also use Oreos with the fillings scraped out for a chocolate crust. You’ll need 7-ounces (200 g) of Oreo crumbs.
  • Butter for the crust. I use salted American butter for the best flavor.
key limes, cream cheese, sugar and other ingredients laid out on counter.
Key limes have a less acidic flavor than a regular lime. More floral, and fruity.

Watch The Video Demo Below

Step#1: Make The Crust

  • You’ll line a 9″ x 9″ (23 cm x 23 cm) brownie pan with parchment paper to make the cheesecake bars easier to remove once baked. Or you can use a cheesecake pan.
  • Process the graham cracker crumbs in a food processor, then add the sugar and butter until a wet crumb forms.
  • Fit the crumbs into the pan, pressing down to form an even layer and then bake.
a brownie pan filled with graham cracker crumbs.

Step#2: Squeezing the Key Limes

  • Key limes are small! They are 1/3 of the size of a traditional lime so squeezing enough of them to get 3/4 cup of juice can be a bit of a chore!
  • This task will go a lot quicker with a lime squeezer.
  • You’ll need about 1 1/4 pounds of key limes so the squeezer really helps get through them all!
  • Be sure to save 4-5 key limes for the garnish.
key limes being squeezer with a lime squeezer.
The best way to squeeze the juice from key limes is with a lime squeezer.

Step#3: Mixing, Baking, Cooling

  • You’ll mix up the cream cheese batter in a stand mixer until smooth.
  • Be sure to give it a final whisk with a wire whisk, as you pour the batter into the cooled crust.
  • This will remove any lumps that may be present in the batter and ensure a smooth and creamy texture.
  • Once the cheesecake is done baking (do not go over 30 minutes!) it will still look a little underdone. But that’s OK because it will cool in the warm oven, once it’s been turned off, with the door propped open. This will allow it to continue to bake all the way through and set, without overbaking which will create cracks.
  • Once it’s done cooling in the oven, allow it to cool at room temperature for at least 15-30 minutes more before refrigerating for a minimum of four hours, but overnight is even better.
oven door open with cheesecake cooling inside.
Let the cheesecake cool down in the oven with the door open.

Step#4: Serving

  • Carefully run a warm/wet knife around the permeter of the pan, and lift the bars out with the parchment paper.
  • Slice into 9-squares and place on a platter.
  • Then top with a dollop of whipped cream placed in a piping bag with your favorite star tip.
  • Add some grated lime zest on top, and a slice of key lime.
many cheesecake squares sliced with whipped cream topping.
Key Lime Cheesecake Bars

Key Lime Cheesecake Bars

Yield: 9 bars
Prep Time: 30 minutes
Cook Time: 30 minutes
Additional Time: 30 minutes
Total Time: 1 hour 30 minutes

Delicious creamy, and rich key lime cheesecake bars, perfect for any special springtime occasion.

Ingredients

For Crust:

  • 13 graham crackers (7-ounces/200g of crumbs)
  • 1 tbsp (13 g) sugar
  • 7 tbsp (98g) butter, melted

For Filling:

  • 24 ounces (680 g) cream cheese
  • 1 ¼ cups (270g) white sugar
  • 2 eggs + 1 egg yolk
  • 2 tsp (10 ml) vanilla extract
  • Pinch of salt
  • ¾ cup (177 ml) key lime juice ( 1 1/4 lb of key limes)* Save 4-5 for garnishing

For Garnish:

  • 1 cup (240 ml) heavy cream
  • 1 tbsp (7 g) powdered sugar
  • 1 tsp (5ml) vanilla extract
  • Lime zest + slices from 4-5 key limes
  • ¼ cup (34 g) flour
  • Pinch of salt

Instructions

  1. Preheat oven to 325F (165C).
  2. Prepare a 9" x9" (23 cm x 23 cm) brownie pan with baking spray. Line one side with parchment paper, enough to create large flaps on either side. Set aside.
  3. Add graham crackers to a food processor and process until crumbs form. Add the sugar and pulse while adding the utter until wet crumbs form.
  4. Place crumbs in the pan and shake the pan to level them out, then press down to create an even layer. Bake for 10 minutes and allow to cool.
  5. Meanwhile beat the cream cheese and sugar together with an electric mixer, add the eggs one at a time, beating in between each addition. Then add the egg yolk. Scrape down the bowl.
  6. Add the vanilla extract, and salt and beat to combine.
  7. Then add the key lime juice and slowly beat to combine.
  8. Then add the flour and beat to combine.
  9. Remove the bowl from the mixer and whisk the mixture to ensure to lumps remain.
  10. Pour the mixture over the cooled crust, whisking while pouring to remove any lumps.
  11. Bake for 30 minutes at 325F (165C).
  12. At the 30-miniute mark cheesecake will still look jiggling in the center. That's OK it will continue to set in the warm oven as it cools.
  13. Turn the oven off, open the oven door ajar, and allow to cool in the oven for 15 minutes. Then cool at room temperature for 30 minutes.
  14. Refrigerate, uncovered for a minimum of 4 hours, but overnight is even better.
  15. To serve whip the heavy cream, powdered sugar, and vanilla extract until stiff peaks form. Transfer whipped cream to a pastry bag fitted with a star tip.
  16. Slice cheesecake into 9 bars. Pipe a star of whipped cream on top, garnish with lime zest and a thinly sliced wheel of key lime.
Brownie cake scooped into a mug with ice cream

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10 Comments

  1. Hi Beth,
    I love your site and watching all your wonderful videos. Passover is coming up, Do you have any flourless recipes to share? Can your Key Lime cheesecake be made flourless?

  2. *****These are spectacular!!!!! I made them yesterday and enjoyed them today! Thank you again for another winner! Now, let’s get that cookbook out!!

  3. what does the crackers equal to in cups? I only have fine crumbs. It would be nice to put both to help with whatever people had. Thanks.

  4. What was the 1/4 cup of flour for? Is this a mistake or should it be included in the filling? This is confusing to me and I’m pretty sure others are confused as well.
    Thanks