Keto Lemon Bars

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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

Mad Creations 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.
4.91 from 21 votes!
Prep Time: 15 mins
Cook Time: 45 mins
Total Time: 1 hr
Course: Dessert
Cuisine: American
Diet: Diabetic
Recipe Category: Low Carb
Calories: 172kcal
Author: Megan Ellam
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Servings: 24 slices
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  • Preheat the oven to 325°F (160°C). Line a 23cm × 30cm baking pan with baking paper.
  • Mix all shortbread ingredients together. Allow to rest for 5 minutes. Press into prepared 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 minutes/90℃/speed 1.
  • Add remaining shortbread ingredients and mix 30 seconds/speed 4. Allow to rest for 5 minutes. Press into prepared pan.
  • Bake 20-22 minutes or until the edges are lightly golden.
  • Mix all filling ingredients 30 seconds/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.
Please read blog post for variations and further tips on ingredients and baking

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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  • Sing says:

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

  • Gina D. says:

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

  • Penny P says:

    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.

  • Trudi says:

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

  • Jan says:

    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.

  • Tricia says:

    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.

  • Len says:

    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?

  • Vicki says:

    Can you use almond flour instead of almond meal? Vicki

  • Kym S says:

    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.)

  • Jacqui says:

    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!

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