Key Lime Bars

Key Lime Bars are a buttery, flakey crust topped with a deliciously sweet, citrusy key lime filling and powdered sugar.  The crust to filling ratio is perfect, they’re easy to make, and they’re a huge crowd pleaser!  You just can’t beat that.

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.   :smile:

key lime pie bars

While I was away, my new blog design was rolled out.  It’s still in progress, but it’s very exciting for me!  I went with Zesty Blog Consulting after months of fumbling around on my own trying to figure out how to do this and how to do that.  I guess I did pretty well considering I had no experience with blogging and was far from being social media savvy.  I decided I wanted to pay someone to deal with everything so that I could focus on the food, photography, and blogging end of things more.  I didn’t want to drop thousands of dollars (gulp!), and I found Zesty Blogs to be quite reasonable for everything that was included, and Cory is very knowledgeable and helpful.  Zesty Blogs does include a logo in the redesign price in the package that I selected, but I had already enlisted the help of my good friend Colleen at Dillon Designs, so she created my lovely logo for me.  Thank you, Colleen!  I appreciate your patience going back and forth, back and forth with me on the design.  You’re the best!   😀

key lime pie bars

Now that I got through some of that important business, let’s talk Key Lime Bars.  It’s no secret that I love, love, love key lime anything.  It doesn’t matter if it’s  Key Lime Pie with Meringue Whipped Cream, Coconut Key Lime Pie Smoothies, or my Fresh Key Lime Greek Yogurt Dip, it doesn’t get much better than key lime flavor for me.

key lime pie bars

I made these 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.  Next time, I may scale back on the sugar in the key lime filling by 1/4 cup and see if the key lime flavor comes through more.  These bars were perfect, however, so I’d completely be messing with perfection.  I just might have to leave them exactly as they are.  😉

key lime pie bars

Key Lime Bars
Prep time
Cook time
Total time
Key Lime Bars are a buttery, flakey crust topped with a deliciously sweet, citrusy key lime filling and powdered sugar. The crust to filling ratio is perfect, they're easy to make, and they're a huge crowd pleaser! You just can't beat that.
Serves: 16-20 bars
  • 1 cup unsalted butter, softened
  • ½ 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
  • ¼ 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 ½ 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!
You can easily substitute the key lime juice with lemon or regular lime.

Recipe adapted from Pat & Gina Neely's Lime Bars.


  1. says

    Love the new logo and design Marcie! Bummer you were stuck in traffic. Four hours is a really long drive when it should have been 2.5 –eek! On the upside, this Key Lime Bar is sublime! :) Have a great week.

  2. says

    I love key lime everything! I tried to make key lime cheesecake a couple of days ago, but I added too much sugar too and the flavour didn’t come trough either :( These bars look amazing, I think I’ll try them reducing a bit the sugar… I love the tangyness from the limes!
    And the blog’s new look is amazing, by the way. The new header is lovely! x

    • says

      Thank you, Consuelo! I didn’t think the bars were too sweet, but yes, in order for that flavor to come through more, the sugar has to be scaled back. Key lime cheesecake sounds amazing!

  3. says

    These look scrumptious! My husband and I went to Key West on our honeymoon and had a blast. Anytime I see a key lime dessert, I get a little reminiscent of the fun times we had together (especially when I’m sitting in traffic and wishing I were doing anything other than commuting!). Perhaps I’ll have to make these for our first anniversary! Thanks for the inspiration.

    I’m a new reader so I don’t think I ever got a chance to see your old layout — but I love the new look!

    • says

      Welcome, Jamie! Key West sounds amazing. I’ve never been there, but the key lime thing just happened with a recipe I tried for pie, and it became something I use often. I think the sugar needs to be scaled back about a 1/4 cup to taste the lime more. I’m going to experiment with that. They’re still absolutely delicious, however!

  4. says

    I have absolutely zero patience for traffic either …. it makes me so cranky. Thankfully we’re no longer in DC and don’t have to deal with it anywhere near as much now! haha These bars sound awesome – I totally want to eat that crust!

    • says

      Glad you got out of that DC traffic, Ashley. I commuted to SF for 11 years, and luckily I could take the train or I would’ve never made it! The crust on these bars was amazing!

  5. says

    These look SO good, I bet I could eat the whole pan, I know this because I did eat all but two the last time I made bars similiar to this :)

  6. says

    The new website looks great Marcie! I love that picture of you – you look fabulous :)

    Lemon bars are one of my favorites and I’m a big fan of key lime so this would probably end up being one of my favorite desserts EVER.

    xo Jackie

  7. says

    LOVE all things lime!!! I could eat up the whole pan right now and I bet you wished you had some on your long trip home! Love your new blog design BTW! So pretty :)

  8. says

    I found this post on Google+ today. I am from Switzerland, so if I send you some chocolate, will you make those key lime bars for me? They certainly look delicious!

    • says

      I just love Swiss chocolate, and I may take you up on that offer if there were chocolate in this dessert. :) I probably shouldn’t have posted a non-chocolate recipe on Cadbury! Thank you for the very nice comment, Tamara! :)

  9. Ashley says

    I made these tonight taking the advice of using 1/4 cup less sugar…..and OMG they were great. The lime flavor was perfect. I love the crust. So good. Thank you!

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