Sugar, grain and gluten free these Keto Lemon Bars are so delicious! I have fallen in love with these little zesty beauties and I am sure you will too.
Lemon Bars with cream and raspberry

Keto Lemon Bars are my newest best friend! Tangy, zesty and so summery in every bite. This easy recipe will have you singing its praises too!

A little nod to the U.S. and their very popular lemon bars. This low carb dessert version is just perfect. Personally I am a huge lemon dessert fan I am sure many of you may have noticed that through my recipes in my books and the website that I am always kind of sneaking in some curd somewhere.

This recipe is a little different but you will enjoy it because as far as keto fat bombs or keto dessert recipes go this one is easy without too many ingredients at all. Pretty much only 7 ingredients in total and an easy recipe to create.

Mad Creations Keto Lemon Bars_on baking tray


Lemon Bar Ingredients

This Lemon Bar has a delicious and easy shortbread base. Using almond meal as the main ingredient and good amount of creamy butter. I use a salted butter as it adds more flavour to the base. 

The sweetener I use in the base is Sukrin:1, which is a 1:1 with sugar. You can substitute and sweetener you prefer but check the ratio to sugar as many keto sweeteners can be much sweeter than sugar and you will indeed use far less.In the topping I use the powdered sweetener Sukrin Melis. As I always say I am quite lazy and prefer to have the sweetener already powdered for me and because this particular brand is zero calorie and zero carbs I love it all the more. If choosing a different sweetener just mill it in a food processor if you can’t find powdered natural sweetener alternatives.

The lemon juice can be substituted with any citrus juice, remembering the sweeter the juice the higher the carbs. Lime or grapefruit are just as equally as delicious.

Lemon Bars piled high


How to make Lemon Bars

I have included two cooking methods for these bars. They are very simple and there is only a couple of things to remember. 

After mixing the base ingredients allow the mix to rest for just 5 minutes. This allows the almond meal to soak up the butter. Once it has rested press into the tin and bake. While the base is baking mix your topping as it does get poured onto the warm base so that, not a cooled one. Check the base is golden and slightly firm before pouring on the topping.

The topping should be very lightly golden when ready and not jiggly at all. Cool and refrigerate in pan and cut once it is completely set.

Lemon Bars on white back grounf


How to serve Lemon Bars

These bars can be eaten completely as is but you can do a few things to dress them up.

A simple dusting of powdered sweetener is traditional. A good dollop of cream and any fresh berries and shredded mint also makes it all the more better in my opinion. Even a little shaved chocolate or toasted coconut is a lovely addition. The Lemon Bars are just great for having as an occasional treat and can be frozen in ziplock bags as well.

I am also thinking these would be a beautiful  keto Mothers Day recipe or a keto high tea as well. Make a selection of tasty savoury treats like my Cheddar & Chive Scones with mini quiches and along with your Lemon Bars and a delicious gluten-free Cheesecake.

Mad Creations Keto Lemon Bars 3 stack

If you love this recipe and want more keto dessert recipes then here are just a few of my faves

  1. Keto Chocolate Caramel Slice | Sugar Free
  2. Keto Sweet Bread – Spiced Low Carb Bread
  3. Paleo/Keto Flourless Chocolate Cake
  4. Vanilla Nougat Keto Protein Bars – Zero Carb style
  5. Mad Creations Spiced Baked Keto Donut

Watch me make Keto Lemon Bars


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Lemon Bars with cream and raspberry

Keto Lemon Bars

Sugar, grain and gluten free these Keto Lemon Bars are so delicious! I have fallen in love with these little zesty beauties and I am sure you will too.
4.96 from 41 votes!
Prep Time: 15 minutes
Cook Time: 45 minutes
Total Time: 1 hour
Course: Dessert
Cuisine: American
Diet: Diabetic, Gluten Free
Recipe Category: Low Carb
Calories: 172kcal
Author: Megan Ellam
Servings: 24 slices
Tap or hover over number to scale ingredients
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  • 3/4 cup (120g) (0.75 cup (95g) ) powdered sweetener
  • 100 g (3.5 oz) almond meal
  • 4 (4) large eggs 180g net weight
  • 3/4 cup (170 g) (0.75 cup (170 g)) lemon juice



  • Preheat the oven to 325°F (160°C). Line a 23cm × 30cm baking pan with baking paper.
  • Mix shortbread ingredients together. Leave to rest for 5 minutes. Press into pan.
  • Bake 20-22 minutes or until the edges are lightly golden.
  • Whisk all filling ingredients together. Pour over warm shortbread. Bake 20 -25 minutes or until lightly firm to the touch in the centre. Remove from oven and allow to cool in the pan. Refrigerate until set. Cut into bars.
  • Dust with powdered sweetener and serve with cream, mint and berries.


  • Preheat the oven to 325°F (160°C). Line a 23cm × 30cm baking pan with baking paper.
  • Melt butter 2 min/90℃/speed 1.
  • Add remaining shortbread ingredients and mix 30 sec/speed 4. Lave to rest for 5 minutes. Press into the pan. Bake 20-22 minutes or until the edges are lightly golden.
  • Mix filling ingredients 30 sec/speed 3. Pour over warm shortbread. Bake 20 -25 minutes or until lightly firm to the touch in the centre. Remove from oven and allow to cool in the pan. Refrigerate until set. Cut into bars.
  • Dust with powdered sweetener and serve with cream, mint and berries.



Serving suggestion
Serve with powdered sweetener, cream or berries. Also great with ice cream.
Will store well in fridge for up to 3 days or freezer up to 3 months.
I use a 15ml tablespoon and 250ml cup for measures. You can use the calculator to convert ounces in a cup if needed. Please note that there is also a conversion from metric to US Customary button under the list of ingredients.

Your Own Notes


Serving: 1slice | Calories: 172kcal | Carbohydrates: 4g | Protein: 4g | Fat: 16g | Saturated Fat: 4g | Cholesterol: 44mg | Sodium: 67mg | Potassium: 19mg | Fiber: 1g | Sugar: 0g | Vitamin A: 235IU | Vitamin C: 2.9mg | Calcium: 45mg | Iron: 0.8mg | Net Carbs: 3g
Tried this recipe?Mention @meganellam or tag #madcreations!

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24 responses to “Keto Lemon Bars”

  1. Jacqui

    5 stars
    I was so excited when I found this recipe and I certainly wasn’t dissapointed! These were fairly easy to make and absolutely delicious! I used bottled lemon juice, but they still turned out amazing. Highly recommend them to anyone doing Keto and wanting a sweet treat!

    1. Megan Mad Creations Hub


  2. Kym S

    5 stars
    This is one of my all-time favourite slice recipes. I LUV lemon and I have a lemon tree, so this recipe is cooked in high rotation in my kitchen. All the ingredients are readily available, it’s super easy to make, it needs no specialty equipment, there’s very little washing up, it makes 24 yummy slices, and it freezes and defrosts perfectly. 10/10.
    (p.s. I have never had this slice crack. My Gran says to check your oven temp is accurate, yours maybe too hot and/or possibly cooking on a shelf further away from the heat source. Also, consider adding another egg as your mix may be slightly dry.)

  3. Vicki

    Can you use almond flour instead of almond meal? Vicki

    1. Megan Mad Creations Hub

      Hi Vicki, yes you absolutely can.

  4. Len

    4 stars
    I loved the taste and texture of this recipe! I’ve been making lemon bars during my pre-keto days and this one is just as good, if not better, as my non-keto recipe. The only thing that puzzled me was the cracking and they were not just small cracks. I followed the recipe to a tee. What would you suggest I do next time I make this again to prevent cracking please?

  5. Tricia

    5 stars
    Love everything lemon related & these are OMG Yum! Nice and tangy and perfect texture. Beautiful on its own or with a dollop of cream & a few berries.

  6. Jan

    5 stars
    Would give you 10 stars if I could! Seriously the best keto/ low carb slice I have made. Even though mine cracked a little on top, the taste was spot on. Thank you for sharing.

  7. Trudi

    I am struggling to find what quantity of stevia sweet I could use in this recipe instead of Sukrin. Do you know?

  8. Penny P

    5 stars
    Quick and easy to make. Love the tang of these bars, perfect with cream and berries, or on it’s own as a little treat with a cup of tea. I have a stash frozen in the freezer and it defrosts perfectly.

    1. Megan

      Great to hear you are enjoying them Penny

  9. Gina D.

    5 stars
    This recipe was very delicious made as written. Thanks so much for sharing it! It’s a keeper!

  10. Sing

    5 stars
    It’s an easy and definitely delicious recipe!!!!

  11. Tanya M

    5 stars
    Loved this recipe. Will be made OFTEN!!. Thank you, Megan.

  12. Cate

    5 stars
    I usually have no problems with any of your recipes, but this one just didnt cut it, the base just wasnt right and the top didnt turn out bright yellow like yours or have a nice texture! I am a ketor for 3 years so have a pretty vast experience with the ingredients this one left me bewildered.

    1. Megan

      Hi Cate, Not sure what happened but I have had loads of people posting their successful versions on the FB group.Maybe the particular sweetener you used caused an issue or the oven. I also do use blanched almond meal.

  13. Joanne R

    5 stars
    Sooooo yum! And freezes / defrosts like a dream.

  14. Anonymous

    Can you sub the Almond meal for coconut flour ? i

    1. Megan

      You would need to adjust to make up for the absorption rate.

  15. Anne Wilks

    My lemon bars turned out well except I couldn’t taste the lemon. I did put in the stated amount of fresh lemon juice, could I add some lemon zest do you think to increase the lemon taste? Still yummy anyway nd a small piece is very filling!

  16. Leanne A

    5 stars
    This is a delicious and easy recipe. The base is very shortbread like in texture and flavour. The lemon layer has a lovely tang to it and smooth texture. It cuts really well, without crumbs. And, it doesn’t taste ‘keto’ (you’ll all know what I mean!!). Well done Megan. I’m wondering if this base will be used for caramel slice, marshmallow slice, cheesecakes, etc in the future!?

  17. Kim

    5 stars
    These are fabulous – a buttery shortbread base with just the right amount of tart, custardy lemon on top. I’ve been waiting all week to try this recipe and was not disappointed. My new go to dessert. 👍👍

  18. Lynda

    5 stars
    This is lemony goodness at its best. My family loved it for dessert with whipped cream and berries. The base is buttery and the lemon is nice and sharp without being too sweet. It’s a very quick and easy bar to make and would sit proudly on anyhigh tea tower.
    Another great recipe. Thanks Megan

    1. Megan

      Thanks Lynda. I am so happy everyone enjoyed it

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