• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Low Carb Yum
Easy Gluten-Free & Keto-Friendly Recipes
  • Facebook
  • Instagram
  • Pinterest
  • YouTube
  • Start Keto
    • What Is The Keto Diet?
    • The Benefits Of A Keto Diet
    • What Are Macros In Keto?
    • Best Keto Fruits
    • Best Keto Vegetables
    • 5 Types Of Keto Diets
    • Low Carb vs Keto?
    • The Keto Food Pyramid
    • Keto Supplements
  • Recipes
    • By Course
      • Keto Appetizers
      • Keto Drinks
      • Low Carb Breads
      • Keto Casserole Recipes
      • Keto Salads
      • Sauces & Dressings
      • Keto Sides
      • Low Carb Snacks
      • Low Carb Soups
    • By Cuisines
      • Asian
      • Italian
      • Mexican
      • Southern
    • By Diet
      • Dairy-Free
      • Paleo
      • AIP
      • Nut-Free
      • Egg-Free
      • Vegetarian
      • Vegan
      • Kid Friendly
    • By Cooking Style
      • Air Fryer
      • Crock Pot
      • Instant Pot
      • One Pan
      • Freezer Friendly
      • 30 Minutes or Less
  • Fast Food Menus
  • Breakfast
  • Dinner
    • Beef
    • Casseroles
    • Chicken
    • Eggs
    • Pork
    • Seafood
    • Turkey
  • Desserts
    • Cakes
    • Candy
    • Cheesecakes
    • Cookies
    • Frosting
    • Frozen Desserts
    • Fruit
    • Pies
    • Puddings
  • Shop
    • 5-Ingredient Keto Cookbook
    • Simple Keto Meals Cookbook
    • Low Carb Casseroles eCookbook
    • Low Carb Keto Products
menu icon
go to homepage
search icon
Homepage link
  • Starting a Keto Diet
  • Keto Recipes
    • Breakfasts
    • Dinners
    • Desserts
  • Membership
    • Facebook
    • Instagram
    • Pinterest
    • Twitter
    • YouTube
  • ×
    Home / Recipes / Kid Friendly

    Low Carb Lemon Bars Recipe (Keto, Gluten Free)

    By Lisa MarcAurele · Jul 3, 2020 · 41 Comments

    24.8K shares
    Jump to Recipe
    keto lemon bars pinterest image
    Low carb lemon bars recipe

    A luscious low carb lemon bars recipe that is very close to the real thing. But it's a sugar free treat made with gluten free coconut and almond flour.

    Keto low carb lemon bars recipe
    Article Index
    • How to Make Low Carb Lemon Square Bars
    • Keto lemon bars recipe variations
    • Final thoughts on these sugar free lemon bars
    • Low Carb Lemon Bars Recipe - Gluten Free Option
    • Recipe

    While I was away on a work trip, there were so many sweet temptations. Of course, none of them were low carb desserts. One of the items that caught my eye were some triangular lemon square bars. They had a shortbread crust with a thick lemon topping on top.

    My mind started churning on how I could make my own low carb lemon bars when I got home. Based on an old recipe my mother used, I noted some potential recipe ideas I could test when I got home.

    One recipe used all Carbquik for the crust, the other used a blend of almond flour and coconut flour. The recipe could likely be made with one flour or the other, but I like to combine both low carb flours.

    How to Make Low Carb Lemon Square Bars

    Crust ingredients in bowl

    For the crust, I ended up using a mix of almond flour and coconut flour to keep the bars gluten-free. I simply mixed the flours with low carb sweetener and butter with a pastry cutter. To help the crust hold together better, I added a little xanthan gum but that can be left out if desired.

    Cutting into the crust dough

    The crust mixture was then pressed into a square 8x8 pan. After baking for about 18 minutes, the crust turned a nice golden color. I let it cool a bit on a rack before preparing the lemon topping.

    Baked crust

    I blended eggs, low carb sweetener, baking powder, salt, lemon juice, dried lemon peel, gelatin, and lemon extract to make the lemon topping. The ingredients were just dumped in a large bowl and blended smooth with an electric hand mixer.

    Lemon filling ingredients in bowl

    This mixture was then poured on top of the baked crust and spread into an even layer. Then I put the pan back in the oven to cook the topping.

    Lemon topping spread over crust

    It took about 15-20 minutes of baking for the lemon topping to set. After cooling on a baking rack, I was able to cut the low carb lemon bars into squares.

    Keto lemon bars recipe variations

    The amount of lemon topping isn't a lot, so I may try doubling the amount of topping the next time I make these bars. However, the thin topping on the finished squares was perfect. It was chewy and the crust was similar to a shortbread.

    If you are looking for more of a traditional lemon bar with the thicker topping, I would try doubling the amount of topping, using a full packet of gelatin. But, I preferred the thinner lemon layer.

    I wonder how a layer of cheesecake would taste. Maybe I'll experiment with low carb lemon cheesecake bars. That does sound tasty, doesn't it?

    Overall, these low carb lemon bars were just as I had hoped. Although I made these gluten-free, those who aren't concerned with gluten can replace the coconut flour with Carbquik.

    Easy keto low carb lemon bars with whipped cream

    Final thoughts on these sugar free lemon bars

    The gluten free crust on used to make these sugar free lemon bars would be great for other recipes too. I'm thinking it might taste better than the pecan crust I used on my chocolate chip cheesecake bars.

    Any recipe for low carb cookies could also be used to form a crust for these bars. I think my gluten free ginger cookies or my keto coconut macaroons would work perfectly. Lemon goes well with both ginger as well as coconut.

    A basic shortbread crust would work well too as the base for these bars.

    Low Carb Lemon Bars Recipe - Gluten Free Option

    Keto low carb lemon bars with strawberries

    If you try these out, I'd love to know what you think of this easy low carb lemon dessert. And I'd also be interested in hearing about treats you've seen lately that you'd like to see made low carb?

    Follow us on FACEBOOK, PINTEREST, and INSTAGRAM for even more tasty keto-friendly recipes!

    Recipe

    Keto low carb lemon bars with strawberries

    Keto Lemon Bars

    5 from 4 votes
    Luscious low carb lemon square bars that are very close to the real thing. These yummy treats are made with a blend of almond flour and Carbquik.
    Prep Time:10 minutes mins
    Cook Time:38 minutes mins
    Cool Time:30 minutes mins
    Total Time:48 minutes mins
    Course: Dessert
    Cuisine: American
    Print Pin Review Recipe Save Recipe View Collections
    Servings: 16
    Calories: 82

    Video

    Ingredients

    Crust:

    • ¾ cup almond flour
    • ¼ cup coconut flour
    • ¼ cup low carb sugar substitute
    • ¼ cup softened butter
    • ½ teaspoon xanthan gum optional, just helps hold it together better

    Filling:

    • 3 large eggs
    • 1 cup Swerve Confectioners Powdered Sweetener
    • 1 teaspoon baking powder
    • ½ teaspoon salt
    • 6 tablespoons lemon juice
    • ½ teaspoon lemon zest
    • 2 teaspoon grass-fed gelatin
    • 2 teaspoon lemon extract
    US Customary - Metric

    Instructions

    • Pre-heat oven to 350°F.
    • Blend crust ingredients using a pastry cutter. Press crust into a 8 x 8-inch baking pan spayed with non-stick cooking spray.
    • Bake for about 18 minutes or until lightly browned. Cool slightly.
    • Beat the ingredients for the filling for about a minute then pour evenly over the baked crust.
    • Return to oven and bake again for about 15-20 minutes or until set.
    • Let cool at room temperature, cut into 16 even squares. Keep cool in the refrigerator.

    Notes

    Carbquik can be used in place of the coconut flour if gluten free isn't needed.
    The lemon topping can be doubled for a thicker layer on top if desired.
    Net carb per square: about 0.9 g

    Low Carb Sweeteners | Keto Sweetener Conversion Chart

    Nutrition

    Serving: 1square | Calories: 82 | Carbohydrates: 5g | Protein: 3g | Fat: 7g | Saturated Fat: 3g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 1g | Trans Fat: 0.1g | Cholesterol: 38mg | Sodium: 141mg | Potassium: 19mg | Fiber: 1g | Sugar: 0.5g | Vitamin A: 134IU | Vitamin C: 2mg | Calcium: 32mg | Iron: 0.4mg

    Additional Info

    Net Carbs: 4 g | % Carbs: 17.6 % | % Protein: 13.2 % | % Fat: 69.2 % | SmartPoints: 3
    Values
    Array
    (
        [serving_size] => 1
        [calories] => 82
        [carbohydrates] => 5
        [protein] => 3
        [fat] => 7
        [saturated_fat] => 3
        [cholesterol] => 38
        [sodium] => 141
        [potassium] => 19
        [fiber] => 1
        [vitamin_a] => 134
        [vitamin_c] => 2
        [calcium] => 32
        [iron] => 0.4
        [serving_unit] => square
        [polyunsaturated_fat] => 0.3
        [monounsaturated_fat] => 1
        [trans_fat] => 0.1
        [sugar] => 0.5
    )
    

    Notes on Nutritional Information

    Nutritional information for the recipe is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs are not included in carb counts as it has been shown not to impact blood sugar. Net carbs are the total carbs minus fiber.

    Copyright

    © LowCarbYum.com - Unauthorized use of this material without written permission is strictly prohibited unless for personal offline purposes. Single photos may be used, provided that full credit is given to LowCarbYum.com along with a link back to the original content.

    Post updated in February 2019. Originally published December 2010.

    « 18 of The Best Keto Paleo Chicken Recipes
    Easy Mexican Chicken Lasagna Casserole »

    Related Posts

    Reader Interactions

    Comments

    1. kerry norr

      February 25, 2020 at 11:30 am

      These look great, next on my list to try.
      As for something to make low carb next, how about German Chocolate cake frosting.

      Reply
      • Lisa MarcAurele

        February 25, 2020 at 3:16 pm

        Here's the recipe for that frosting: German Chocolate Cake

        Reply
    2. William

      September 16, 2019 at 6:28 pm

      Hi,

      I am kust wondering about dried lemon peel...could you explain what this is.... dried lemon zest ? Peel without the pith ? We do not have it in our grocery stores.

      Cannot wait to make them !

      Reply
      • Lisa MarcAurele

        September 16, 2019 at 8:07 pm

        Dried lemon zest is pretty much tiny pieces of the peel that have been dried.

        Reply
    3. Janet

      May 13, 2019 at 10:06 pm

      5 stars
      Why is there a thicker layer on top when I double the filling? Fantastic recipe.

      Reply
      • Lisa MarcAurele

        May 14, 2019 at 11:42 am

        A layer does form on top after baking so I'd guess it gets thicker if the filling is doubled.

        Reply
        • Janet

          May 14, 2019 at 2:33 pm

          Is that normal for lemon bars ?

        • Lisa MarcAurele

          May 15, 2019 at 7:40 am

          It is for these.

    4. Ree

      March 06, 2019 at 2:44 pm

      You have the most amazing recipes! Thank you so much for sharing them with us. Someone just recommended your cream cheese cookies, which I am going to make for a family gathering soon- will test them out first, but I know they will be great as I have tried a couple of other recipes of yours recently.

      Now, lemon bars. Did someone say lemon? My ears and eyes perk right up when I see anything with lemon! I am printing this off and will make these over the weekend- I can't wait to try them. Lemon is one of my favorite fruits!

      Reply
      • Lisa MarcAurele

        March 07, 2019 at 8:23 am

        Hope you love the lemon bars! I was having such a craving for them that I had to make a low carb version.

        Reply
    5. Tiffanye Branch

      February 27, 2019 at 6:29 pm

      Where in the world are you guys finding dried lemon peel?

      Reply
      • Lisa MarcAurele

        February 28, 2019 at 9:06 am

        It's in the spice aisle but you can make your own too or just use fresh.

        Reply
    6. Rosemary

      February 20, 2019 at 11:40 pm

      5 stars
      I made the Lemon Bars today. I loved the crust. Held together real well. I think 18 mins is too long. I'll cut back on time next time. I will double the filling next time. I appreciate the feedback to use 3 eggs not 4. I used Xanthan Gum in the filling instead of Gelatin. My family loved them. They said they weren't too sweet and had a perfect Lemony flavor

      Reply
      • Julie

        March 10, 2019 at 8:57 pm

        I'm making this right now..how much xantham gum did you use in the filling?

        Reply
        • Lisa MarcAurele

          March 11, 2019 at 5:17 am

          It's only like 1/2 teaspoon.

    7. Karen

      February 19, 2019 at 6:09 am

      Hi. Is there a placement for the grass fed gelatin? For example would regular unflavored gelatin work?

      Reply
      • Lisa MarcAurele

        February 19, 2019 at 9:37 pm

        Yes. Regular gelatin works too. However, the amount may differ slightly.

        Reply
        • Kat

          August 26, 2019 at 6:49 pm

          Can agar be used instead of gelatin? If so how much? In fact, how about for your ice cream recipes? Thank you.

        • Lisa MarcAurele

          August 26, 2019 at 7:58 pm

          Agar agar is a great sub for gelatin. From what I've read 1 tablespoon of agar-agar flakes is equal to 1 teaspoon of agar agar.

    8. Nancy Chouinard

      February 07, 2019 at 7:30 pm

      THese are wonderful! The crust is outstanding and I love the lemon filling. Next time I will double the lemon portion, but I enjoyed these even with the smaller amount of filling. Thank you!!

      Reply
      • Lisa MarcAurele

        February 08, 2019 at 8:00 am

        You're welcome! So glad the recipe worked out well for you.

        Reply
    9. Janice

      February 07, 2019 at 4:34 pm

      Can I use all coconut flour as can’t have nuts?

      Reply
      • Lisa MarcAurele

        February 08, 2019 at 8:01 am

        You can try about 1/3 to 1/2 cup coconut flour and more butter. It may take a little experimenting. You may also want to try adding an egg.

        Reply
    10. Longtallsam

      February 07, 2019 at 12:41 pm

      What is the carb content each serving?

      Reply
      • Lisa MarcAurele

        February 08, 2019 at 7:49 am

        It depends on the size of the squares. I cut into 16 small squares and get 2 grams carbs each.

        Reply
    11. Nancy

      February 07, 2019 at 10:33 am

      These look amazing! Do you think it would be possible to make the crust with coconut flour only? Would it be the equivalent to 1/4 cup of coconut flour (instead of 3/4 almond flour)? I cannot eat the almond flour.

      Reply
      • Lisa MarcAurele

        February 08, 2019 at 8:02 am

        Try 1/3 to 1/2 coconut flour only. But you may want to up the butter and or add an egg.

        Reply
    12. Jen

      February 07, 2019 at 9:59 am

      Since I've gone low carb over a year ago, my husband has been begging me for a lemon bar. I can't wait to try this. I love the idea of adding coconut flour to the crust, it will pair so well with lemon. Thanks so much for sharing.

      Reply
      • Lisa MarcAurele

        February 08, 2019 at 7:48 am

        Hope you and your husband enjoy the recipe!

        Reply
    13. Lisa

      November 02, 2018 at 11:32 am

      Could you use fresh lemon peel?

      Reply
      • Lisa

        November 02, 2018 at 3:23 pm

        I don't see why not.

        Reply
    14. Emily Kemp

      July 03, 2018 at 11:01 am

      5 stars
      These look so delicious, I love lemon desserts at this time of year!

      Reply
    15. Rachelle

      June 20, 2016 at 7:05 pm

      Can I use gentle sweet in this?

      Reply
      • Lisa

        June 20, 2016 at 7:33 pm

        I'm not familiar with Gentle Sweet, but it should be fine.

        Reply
    16. Reba

      June 19, 2016 at 4:38 pm

      Can Splenda and the liquid Splenda be used instead of the swerve and stevia extract?

      Reply
      • Lisa

        June 20, 2016 at 6:20 am

        It can, but I'm not sure if the liquid sucralose amount needs to be adjusted. I don't recall if it's a one for one replacement for liquid stevia.

        Reply
    17. Allison

      January 23, 2016 at 7:57 pm

      Whoa buddy. If you're looking for some excellent low carb lemon bars this is it. I don't have carbquick so I did the almond and coconut flour method. I also really love lemon filling so I doubled everything in the filling except for the eggs. I used 3 eggs, added some xanthum gum to the filling, and also added some regular swerve for extra sweetness. Using 3 eggs instead of 4 really kept the filling from tasting eggy. It took a little over 20 to bake but they are perfect! I am so glad I tried these. They are so close to the real thing they really satisfy the craving.

      Reply
      • Lisa

        January 23, 2016 at 8:05 pm

        Thanks for sharing the results with the modifications you made. Must have been amazing with the extra filling!

        Reply
      • E. Darlene Lundy-Veo

        July 20, 2018 at 9:14 am

        How much xanthum gum and Swerve did you add to the filling?

        Reply
    18. Haley

      August 10, 2011 at 6:10 am

      I stumbled across your website and was so excited to see you had a delicious looking low-carb recipe for lemon squares! They have been one of my most missed treats since going low carb and yours are very delicious 🙂 I made them tonight and the had such a great flavor! only problem is I doubled the recipe and I think that was just too much egg topping because it had a very eggy texture, I'll have to try them again with the normal recipe and get your perfect product, thanks for sharing!

      Reply
    19. Jillian

      December 28, 2010 at 6:10 pm

      yum-yum! I love Lemon Bars! I'm loving your low carb recipes and will be adding you to my blog roll. Hope this is okay. 🙂

      Reply
    5 from 4 votes (1 rating without comment)

    Leave a Reply Cancel reply

    Your email address will not be published. Required fields are marked *

    Recipe Rating




    Primary Sidebar

    Homemade Take Out Food

    Here are some of our most popular keto homemade take out options for enjoying all your take-out foods, but with a unique low-carb twist! From Chinese food to Starbucks copycats, all of our recipes are gluten-free and perfect for your low-carb lifestyle!

    • orange chicken on square rimmed white plate
      Keto Orange Chicken (Panda Express Copycat)
    • bang bang shrimp on white platter with sauce
      Keto Bang Bang Shrimp (Bonefish Grill Copycat)
    • cheese and herb bread rolls featured image
      Keto Cheddar Biscuits (Red Lobster Copycat)
    • keto caramel macchiato featured image.
      Keto Caramel Macchiato (Starbucks Copycat)
    • keto burrito bowl with ingredients.
      Keto Burrito Bowls

    Popular Desserts

    Desserts can be a challenge while on a keto or low-carb diet. We have wonderful recipes to satisfy your sweet tooth, while watching those macros.

    • keto chocolate cake slice on white plate
      Best Keto Chocolate Cake Recipe
    • peanut butter balls buckeyes on white square plate
      Keto Peanut Butter Balls (Buckeyes)
    • cheesecake mousse keto dessert with cream cheese
      Keto Cheesecake Fluff (Sugar-Free Recipe)
    • oreo chaffle featured image
      Easy Oreo Chaffles Recipe

    Footer

    Featured On:

    Parade FitnessHuffington PostHealthLineBuzzFeedThe KitchnShapeWomen's HealthCountry Living Men's Health

    Keto

    • Get Started
    • Keto Calculator
    • Low Carb vs Keto
    • Low Carb Food List

    Recipes

    • Breakfast
    • Desserts
    • Dinners
    • Salads
    • Sides

    About

    • About
    • Contact
    • Newsletter
    • Work With Us

    ↑ back to top

    LowCarbYum.com makes money through affiliate partner links: If you click on a link, we may earn a commission. Our writers create all reviews, recipes, and other content to inform readers, with no influence from our advertisers. LowCarbYum.com may earn from qualifying purchased made on Amazon.com. Learn more about our policies and disclosures.

    Copyright © 2025. Low Carb Yum. All Rights Reserved.

    Rate This Recipe

    Your vote:




    A rating is required
    A name is required
    An email is required

    Recipe Ratings without Comment

    Something went wrong. Please try again.