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Leigh Anne Wilkes

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Home / Latest Posts / Recipes / Course / Dessert / Bars and Brownies / The Best Key Lime Bars

The Best Key Lime Bars

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By: Leigh Anne WilkesPosted: 3/26/17Updated: 5/21/21

This post may contain affiliate links. Please see disclosure policy here.

stack of key lime bars

These key lime bars are amazing and they pack a powerful lime punch! 

If you are as much of a key lime fan as I am be sure and check out my other favorite key lime recipes. This Key Lime Cake is so good and this Key Lime Pie is perfection. I also love Key Lime Ice cream!

key lime pie bars on a serving platter

The Best Key Lime Bars

I first made this bars recipe back in 2010 for a women’s event at church.  We were doing a dessert bar and I got to experiment with lots of yummy bar cookies.  As soon as I took my first bite of these I knew they were a winner.

When my husband took his first bite, the first word out of his mouth was , “Wow!”   It was a good “Wow!”  A “these are the  best key lime bars” type of wow!  I knew that I was going to have to share them with my neighbors quickly so I didn’t eat the entire 9 x 13 pan myself!!

Key Lime Bars

How to Make Key Lime Bars

The bars are made in 3 layers.  

Key Lime Bar Crust

  • Combine the crust ingredients except for the pecans into a bowl
  • Beat at low speed until the mixture resembles coarse crumbs
  • Add in the pecans
  • Press mixture into the bottom of an ungreased 9 x 13 pan
  • Bake for 15-20 minutes or until edges are slightly browned, don’t overcook..
bottom layer of the key lime bars

You just want them slightly brown around the edges.  While they are hot add the next layer.

Key Lime Filling

  • Combine all the filling ingredients into a bowl
  • Beat at low speed until well mixed
  • Pour filling over hot, partially baked crust
  • Bake for 18 more minutes or until set.
Key Lime Bars filling

Key Lime Bar Frosting

Cool bars completely.

  • Mix together powdered sugar, butter, lime peel and more key lime juice.
Key Lime Bars Frosting in a bowl
  • Spread frosting over cooled bars.
Key Lime Bars on a serving tray

If you are a citrus fan you are going to love these pretty little key lime bars.  You could also make them with lemon juice if you’d like.  It would be amazing too.  I purchase the key lime juice that comes in the bottle, the Nellie & Joe’s Key Lime Juice.  It awesome and tastes just like fresh key limes.

I like to sprinkle some addition lime peel over the top before serving.  I use my trusty microplanner for this!  Just a nice light sprinkling to make the bars a little prettier.

layered key lime bars on a serving tray

Just know I can not be held responsible if you end up eating the whole pan by yourself.  You are going to want to, I promise!!  So put a few of the bars on a plate with the key lime bars recipe and gift them to a neighbor!

For all of my other favorite kitchen products and tools visit my Amazon Store. 

Did you know I wrote a cookbook?  Check out the Holiday Slow Cooker Cookbook for 100 delicious recipes.

Key Lime Bars Recipe

4.78 from 22 votes
stack of three key lime bars

Key Lime Bars

Recipe From: Leigh Anne Wilkes
These key lime bars are amazing and they pack a powerful lime punch! 
serves: 24 bars
Prep:20 minutes
Cook:30 minutes
0 minutes
Total:50 minutes
Rate Recipe

Ingredients

Crust:

  • 1¾ cups all purpose flour
  • ¾ cup butter softened
  • 1/4 cup sugar
  • 1/4 cup chopped pecans

Filling:

  • 1 ½ cups sugar
  • 4 eggs
  • 4 Tbsp flour
  • 5 Tbsp fresh key lime juice
  • ½ tsp baking powder

Frosting:

  • 2¼ cups powdered sugar
  • 1½ Tbsp butter softened
  • 2-3 Tbsp fresh key lime juice
  • Freshly grated key lime peel

Instructions

  • Preheat oven to 350 F degrees
  • Combine the crust ingredients except for the pecans into a bowl
  • Beat at low speed until the mixture resembles coarse crumbs
  • Add in the pecans
  • Press mixture into the bottom of an ungreased 9 x 13 pan
  • Bake for 15-20 minutes or until edges are slightly browned
  • You don’t want to over cook it
  • Meanwhile, combine all filling ingredients into a bowl
  • Beat at low speed until well mixed
  • Pour filling over hot, partially baked crust
  • Continue baking for 18-20 minutes or until filling is set
  • Cool completely
  • Combine all the frosting ingredients except lime peel in a bowl
  • Spread over cooled bars
  • Garnish with grated lime peel

Nutrition Facts:

Calories: 215kcal (11%) Carbohydrates: 34g (11%) Protein: 2g (4%) Fat: 8g (12%) Saturated Fat: 4g (25%) Cholesterol: 44mg (15%) Sodium: 68mg (3%) Potassium: 40mg (1%) Fiber: 1g (4%) Sugar: 26g (29%) Vitamin A: 239IU (5%) Vitamin C: 1mg (1%) Calcium: 13mg (1%) Iron: 1mg (6%)
* Disclaimer: All nutrition information are estimates only. Read full disclosure here.
Course:Dessert
Cuisine:American
stack of three key lime bars
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stack of three key lime bars
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  1. Elizabeth says

    Posted on 8/15 at 10:45 am

    Absolutely delicious!

    Reply
  2. Madelyn Fulsang says

    Posted on 8/10 at 7:17 am

    I love these but why is their s question mark for crust for sugar and pecans ??!??

    Reply
    • Leigh Anne says

      Posted on 8/10 at 8:00 am

      Sorry about that – there was a technical glitch in the recipe plug in and it is fixed now. Enjoy!

      Reply
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