Key Lime Bars

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Key Lime Bars are a buttery, flakey crust topped with a sweet, tangy key lime filling and powdered sugar.  This key lime bar recipe is a huge crowd pleaser and it’s so easy to make!

key lime pie bars

I just got home from the Tahoe area, and I’ve got a bit of a traffic hangover.  It took 4 hours to get home, when it normally takes 2 1/2.  I have zero tolerance when it comes to bumper to bumper traffic.

The only thing that kept me sane was my satellite radio, entertaining my ears with the likes of Nickelback, Pitbull, Justin Timberlake, and my girl P!nk.  

Thank you, Siruis XM, and ROCK ON.  šŸ™‚

key lime pie bars

Key Lime Bars

It’s no secret that I love, love, love key lime anything.  

My favorites include Key Lime Pie, Key Lime Pie Smoothie, or my Key Lime Greek Yogurt Dip.  It just doesn’t get much better than key lime flavors for me.

key lime pie bars

I made these key lime bars for my good friend that was visiting from Switzerland.  She always brings me Swiss chocolate, and I always make her lemon bars.  Yes, I said lemon.  

This visit, I had fresh key lime juice in my fridge, so I asked her if I could use that instead of lemon.  She’d never had a key lime dessert before, so it was time to introduce her!  

The funny thing is, the key lime flavor wasn’t very pronounced.  In fact, if I hadn’t have told anyone that they were key lime bars, they wouldn’t have known.  

All that matters is that these bars are sweet and tangy with melt in your mouth buttery crust that will leave you coming back for more!

key lime pie bars

Key Lime Bars

Yield: 20 bars
Prep Time: 15 minutes
Cook Time: 50 minutes
Total Time: 1 hour 5 minutes

Key Lime Bars are an easy key lime bar recipe with a buttery, flakey crust topped with a sweet, tangy key lime filling and powdered sugar!

Key Lime Bars



  • 1 cup unsalted butter, softened
  • 1/2 cup powdered sugar
  • 2 cups all purpose flour
  • pinch of salt


  • 4 large eggs, lightly beaten
  • 2 cups granulated sugar
  • 6 tablespoons all purpose flour
  • 1/4 cup + 2 tablespoons key lime juice
  • 1 tablespoon key lime zest
  • powdered sugar, for garnish


  1. Preheat oven to 350 degrees. Spray a 9x13" baking pan generously with cooking spray.

Prepare the crust:

  1. In a large bowl, beat the butter and 1/2 cup powdered sugar till light and fluffy, about 2-3 minutes. Add flour and salt, and beat on low speed until just incorporated, about 1 minute more. Press the dough evenly into the prepared pan and bake on the middle rack of the oven 20-25 minutes, or until lightly golden. Remove from the oven and cool on a wire rack.

Prepare the filling:

  1. In a medium bowl, whisk the eggs and 2 cups of sugar. Add the flour and whisk until combined. Whisk in the lime juice and zest. Pour over the cooled crust, and bake 25 minutes longer, or until the filling has set. Cool completely on a wire rack. Dust with sifted powdered sugar once cooled, and cut into squares. Enjoy!


Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 262Total Fat: 10gSaturated Fat: 6gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 62mgSodium: 23mgCarbohydrates: 40gFiber: 0gSugar: 29gProtein: 3g
Nutrition information is mean to be an estimate only. The numbers will vary based on the quantity consumed, brands used and substitutions that are made.

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