That Skinny Chick Can Bake
Key Lime Pie Bars on a square white plate with a lime, raspberry and whipped cream garnish

Key Lime Pie Bars

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Key Lime Pie Bars: A heavenly citrus treat made to feed a crowd! Each bite tastes like Key lime pie but without all the work!

Key Lime Pie Bars on a square white plate with a lime, raspberry and whipped cream garnish

Key Lime Pie Bars

The hubby loves his lemon desserts, but gives lime the cold shoulder. Really??? I love, love Key lime pie. The tart and creamy filling in a sweet graham cracker crust is a delightful pairing.

But I cannot make a whole pie for myself, can I???? Nope. But I hosted book club last month and made these delectable Key Lime Pie Bars. Citrusy squares topped with sweetened whipped cream and a slice of lime. SO good!!!

Key Lime Pie Bars on square white plates on a red and white checked napkin with a bowl of limes

Tips for Making Key Lime Bars

  • First you have to track down some of those small Key limes that come from Florida, California, Mexico or the Caribbean. PRO-Tip: But if you can’t locate any Key limes, regular Persian limes work well. They’re a bit more acidic, but much tastier and fresher tasting than the bottled Key lime juice.
  • You will use both lime juice and zest in this Key Lime Pie Bars recipe. Don’t bother trying to zest your mini Key limes, as it’s much easier to use a standard lime and you’ll never know the difference.
  • The crust is like your basic graham cracker crust. Either buy graham cracker crumbs or make your own by processing full sized graham crackers in a food processor. Those will be mixed with melted butter and a bit of sugar. This mixture is pressed onto the bottom of your prepared panpan, then baked.
  • The Key lime filling is like the typical pie filling, made with juice, zest, egg yolks and a can of sweetened condensed milk.  Mix and spread evenly with an offset spatula over the crust, then bake.
  • For company, you may garnish each slice with a dollop of whipped cream and a thin slice of lime. A berry adds a nice contrast but isn’t necessary!
  • This recipe can be doubled if you’d like to make a 9×13 Key Lime Pie Bars version.

More Citrus Recipes You’ll Love:

Key Lime Pie Bars | Citrus heaven in every bite!

Key Lime Pie Bars

Citrus heaven in every bite. Inspired by Martha Stewart.

Prep Time 20 minutes
Cook Time 10 minutes
Total Time 30 minutes
Yield 16 bars


  • 2 cups graham cracker crumbs
  • 1/3 cup sugar
  • 1/2 cup butter, melted
  • 3 egg yolks
  • 1 1/2 teaspoons finely grated lime zest
  • 1/2 cup Key lime juice (may use standard lime juice)
  • 14 ounces sweetened condensed milk
  • Whipped cream, Key lime slices, berries to garnish, optional


  1. Preheat oven to 350º. Line 8 inch square baking pan with non-stick foil, if desired. Set aside.
  2. Mix graham cracker crumbs, sugar and butter in small bowl. Press evenly onto bottom of prepared pan. Bake 10 minutes, then cool completely.
  3. Beat together egg yolks and zest on high speed till very thick, about 5 minutes. Add sweetened condensed milk and mix on low speed till combined, then increase speed and mix till thick, about 3 minutes. Add lime juice and mix on low till combined.
  4. Spread filling over crust and bake till filling is set, about 10 minutes.
  5. Cool completely before cutting and garnishing with whipped cream, lime slices, and/or berries.

Nutrition Information:



Serving Size:

1 bar

Amount Per Serving: Calories: 238Total Fat: 11gSaturated Fat: 6gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 61mgSodium: 138mgCarbohydrates: 33gFiber: 1gSugar: 26gProtein: 4g


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Skinny Tip

I’m starting a new series of Skinny Tips. How I keep slim is one of my most frequent inquiries. I’ll feature tips on some of my upcoming blog posts.

Tip #1: Drink LOTS of water. Your hair and complexion will thank you plus it will help relieve your hunger pangs. I drink a ton of hot tea (ALL year round) and consider it part of my “water” intake.

Note: This post may contain affiliate links; view my Disclosure Policy for details. I earn a small percentage from any purchase you make by clicking on these links at no extra cost to you.

38 comments on “Key Lime Pie Bars”

  1. Yayyyy!!! Thank you so much Liz, you’re so sweet ๐Ÿ™‚

    and I agree 100% with the water! That’s my current struggle with Michael-he keeps refilling his gatorade bottles with water (like he’ll drive half then fill it up with water to full so it’s diluted) and says it counts. *sigh*

  2. I saw your post On Kayle website.. looks wonderful. That’s good you drink a lot of water. I am trying too but sometimes I feel it was not enough.

  3. I really really really need the skinny tips, Liz! With all the food that I eat (and the exercise I don’t do) anything will help! Eating a pan of these gorgeous key lime pie bars wouldn’t help but it’ll be good for my mental health ๐Ÿ˜‰ Heading over to Kayle’s to read the post!

  4. I love all citrus! Even though I’m a lemon freak, lime is a biggie for me (particularly in cocktails!). And Key Lime Pie is my favorite pie. Period. Hmm, I drink plenty of water and hot tea, too, but I’m not skinny. Although I know the reason why. ๐Ÿ˜‰ Off to read your guest post . . .

  5. Hahaha to Nance’s comment above ๐Ÿ˜‰ ^ These are absolutely needed here these days, especially with the summertime and swimsuit season creeping up on us! I’ll be heading over to read your post. Cheers for sharing, Liz!

  6. Very kind to help out this new friend, will check out her blog. And these Key Lime Pie bars look amazing. Who does not love Key Lime (except Bill lol). I can definitely use your skinny tips!

  7. I love these bars Lizzy!
    Look amazing!:)

  8. Geez, it’s a little late to tell me I can’t make a whole pie for myself:@) I love key lime and your squares are beautiful, I have no doubt they did not last long!

  9. My fave! Your cooking actress friend is very pretty…and so natural.

  10. The plating just speaks for itself. I already sense how yummy this dessert is without yet putting it in my mouth. And thanks for the skinny tip, too!

    Gourmet Getaways

  11. These bars look so refreshing and delicious, gorgeous key lime dessert ๐Ÿ˜€

    Choc Chip Uru

  12. I love key lime. SO MUCH. And great tip, I never drink enough water! I hope we can hang out again soon!

  13. I would love these key lime bars, they look so delicious. I think that it is great that you are starting your series skinny tips. It is hard to stay thin when you are a food blogger. I will look forward to reading your tips. I too love to drink hot tea year round, my favorite is green tea.

  14. I too drink lots of plain hot olong tea! These key lime bars look scrumptious, Liz.

  15. My Archie won’t eat any dessert with lemon in it. I think that goes for limes too. It seems such a strange food aversion. Over here, key lime pie is considered very American and a real treat. I know this is something I would absolutely love as I love any dessert that contains limes (or lemons!) xx

  16. How I adore lime… and this slice, well, Liz, it sounds exquisite!

  17. I could dig into this one, Liz!
    …just got up and got some water after I read your tip ๐Ÿ™‚

    ela h.
    Gray Apron

  18. Heading on over to the Cooking Actress to check out this emerald lime perfection =)

    BTW Like your intro of skinny tips…Will you include Zumba? It’s sooo much fun =)

  19. I love key limes/limes and they are so perfect in desserts. I was glad to hear that the prices are going back down because they were getting so expensive. I’ll go check out the recipe!

  20. Thanks for this recipe and for the tip ๐Ÿ™‚

  21. There isn’t a gosh darned thing in the world that I wouldn’t do for a slice of this pie right now!

  22. key lime is one of my favorites. they look delish!

  23. I heart you and Kayle, so I was super excited to see this guest post!! These key lime pie bars look insane and ridiculously easy, which I love!

    I’m excited to see all your skinny tips! I drink 2 gallons of water a day…yeah…I said gallons. [before people get all crazy about it…I drink less if I don’t work out.]

  24. Oooh, these look great! I love how much crust there is!!!

  25. These bars look divine and what a great skinny tip!

  26. Liz. First, yes, I love these bars as it’s a yolky dessert for macaron lovers. Second, how can anyone lose around you? Your book club must be happy that Bill isn’t keen on some things ๐Ÿ˜‰ Thirdly, great idea on the skinny tips. I’m glad to hear you drink tea. I personally keep trying to like water but, well…

  27. Love these bars – though I could eat a plate of key lime bars as easily as I’d eat a whole key lime pie. Yum!

  28. Lizzy,
    I’ve never had key lime anything. Something new to try.
    I drink lots of water too, about 2 to 3 quarts a day.

  29. These bars look fantastic Liz! I love anything lemon and key lime so these bars are definitely calling my name! Totally wish I was in your book club – they are so lucky they get to sample all of your amazing food:)

  30. I really like key lime pie and I have a bottle of key lime juice from the US that would be perfect for this!

  31. I do too love any lemon and key lime desserts. Heading over to get the recipe. & Yes, please do share your tips. ๐Ÿ™‚

  32. Liz,
    It’s my hubby’s bday Monday and he asked for a key line pie. My friend Seth (Ames) made us a KILLER one once but I don’t have his recipe with me so I went to your site and found this. I might try to make one change that I remember from his recipe(won’t qualify for skinny!) and use Lorna Doones instead of the graham cracker crust. Thanks for this wonderful blog!
    Lisa (Amy’s sister)

  33. These are so beautiful! Oddly – MY picky eater loves Key Lime so this is on my list to make for his birthday coming up next month!

  34. Well these came just in time for the weekend!

  35. REEEfreshing!
    Beautiful. YUMmmmmm. x

  36. Very nice and beautiful. Perfect for eating and pinning ๐Ÿ™‚

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