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Sugar Free Lemon Pie – Keto Gluten Free

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Sugar-free lemon pie – a delicious low-carb lemon pie with coconut flour pie crust and sugar-free lemon curd. 100% Gluten-free, paleo, keto. A low-calorie lemon pie perfect for a light fresh dessert to serve with fresh strawberries or a sugar-free meringue.

Keto Lemon Pie 

Sugar-Free Lemon Pie with Coconut Flour Pie Crust

Lemon Curd pies have always been my favorite dessert. However, it took me 6 months before I managed to make the perfect sugar-free lemon pie. This recipe has been tested on my French friends and they love it.

The sugar-free lemon curd is not acidic, perfectly sweet – simply sweetened with sugar-free crystal sweetener – I used erythritol or sometimes monk fruit sugar. I won’t lie to you, I have been a bit lazy and I did not squeeze fresh lemons.

Instead, I used freshly squeezed lemon from a pack – a lovely natural 100% squeeze lemon juice.  What I love about this new recipe is the crust! I made an easy 4-ingredient coconut flour pie crust ready in 5 minutes in my food processor.

It is THE healthy pie crust I am using for any low carb keto pie. Full recipe on the blog here. 

Coconut Flour Pie crust for lemon pie

Sometimes, I love to add a tiny bit of fresh vanilla to the dough. Very optional but it is a simple addition that makes a big difference. Coconut goes so well with lemon!

I am wondering why I waited so long to eat sugar-free! These new clean eating recipes are way tastier than the french dessert recipes I used to make. And they are guilt-free.

Making the sugar-free lemon pie

You can make this sugar free lemon pie with different toppings. The meringue is not difficult to create without sugar.

If you buy a good sugar-free crystal sweetener like erythritol or monk fruit sugar it will work like a charm. Note that on the picture below I used my Low Carb Almond Flour Pie Crust recipe – that’s why it is not as white and shows you a different option!

Sugar free lemon pie - a delicious low carb strawberry lemon curd pie with coconut flour pie crust and sugar free lemon curd. Gluten free, paleo, keto. Sugar free Meringue recipe provided -optional.

Honestly, I don’t do a meringue each time. Sometimes I love to simply serve the sugar lemon pie with a sprinkle of unsweetened desiccated coconut and freshly grated lemon zest.

Or, in summer I am adding fresh strawberries and a drizzle of sugar-free chocolate.

If you still want to do the meringue, I recommend preparing it just before serving the pie. I have a blow torch to burn the surface and keep the meringue soft.

But you can also bring the sugar-free lemon pie back in the oven for a few minutes on grill mode to brown the top.

Sugar free lemon pie - a delicious low carb strawberry lemon curd pie with coconut flour pie crust and sugar free lemon curd. Gluten free, paleo, keto. Sugar free Meringue recipe provided -optional.

 Watch the recipe video and make it now!

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Enjoy the recipe,

Recipe Card

Keto Lemon Pie

Sugar-Free Lemon Pie - Low-Carb + Grain free

Sugar-free lemon pie - a delicious low carb meringue pie with coconut flour pie crust and sugar-free lemon curd. Gluten-free, paleo, keto.
Prep Time: 20 mins
Cook Time: 20 mins
Total Time: 40 mins
Author: Carine
8 people


Sugar free Lemon curd

  • 1/2 cup Lemon Juice or juice of about 5 small lemons
  • 2 Egg
  • 2 Egg Yolk keep egg white for meringue
  • 1/2 cup Unsalted Butter or coconut oil, melted
  • 1/4 cup Erythritol erythritol or monk fruit sugar

Soft sugar free meringue frosting

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Coconut Flour Pie Crust

  • Prepare the Coconut flour Pie Crust following my blog recipe. 

Sugar-Free Lemon Curd

  • Whisk the lemon juice, sweetener, eggs, and egg yolks together in a saucepan.
  • Bring to medium heat and add the coconut oil or butter, stirring continuously, to prevent the eggs from cooking and scramble.
  • When the coconut oil is melted, increase the heat to medium-high, keep stirring until it thickens up.
  • When thick, remove from heat and transfer into a bowl to cool down at room temperature for 15 minutes.
  • Fill in the coconut flour pie crust with the lemon curd. Refrigerate the lemon pie for at least 2 hours to firm up.

Sugar-free meringue frosting

  • Before serving, add the meringue.
  • In a bowl whisk the egg white until it starts producing a good volume. Usually 30 seconds on high speed.
  • Keep whisking on high speed and slowly add the sugar-free crystal sweetener of your choice.
  • After 1 minute and 30 seconds, the meringue should be really fluffy and triple its volume.
  • Turn the bowl upside down to check if the meringue is ready. If it sticks to the bowl, transfer on the lemon curd pie. If it doesn't stick, keep whisking.
  • Torch the top of the meringue or place 2 minutes in the oven with the grill on until the top is slightly brown.
Sugar-free crystal sweetener: you can use Swerve in the US/Canada, Natvia in New Zealand and Australia, or Monk fruit sugar or erythritol. 
Meringue replacement: if you don't have time to make the meringue, serve the pie with a sprinkle of unsweetened desiccated coconut or fresh strawberries on top! 
Pie pan: I used an 8-inch loose bottom quiche pan for this recipe
Tried this recipe?Mention
Nutrition Facts
Sugar-Free Lemon Pie - Low-Carb + Grain free
Amount Per Serving (1 slice)
Calories 161 Calories from Fat 114
% Daily Value*
Fat 12.7g20%
Carbohydrates 7.2g2%
Fiber 4.1g17%
Sugar 1.1g1%
Protein 5.2g10%
Net Carbs 3.1g
* Percent Daily Values are based on a 2000 calorie diet.

The nutrition panel is for one lemon pie slice with meringue on top using 100% sugar-free sweetener. This recipe makes an 8-inch, 8 slice pie.

This post has been updated on 23/11/2017.

Sugar free lemon pie Keto

Sugar free lemon pie Keto

Sugar free lemon pie - a delicious low carb strawberry lemon curd pie with coconut flour pie crust and sugar free lemon curd. Gluten free, paleo, keto. Sugar free Meringue recipe provided -optional.

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  1. 5 stars
    Awesome recipe and super lemony! This was a hit even among the non-keto peeps. Will definitely be making it again.

    • I am sure you can freeze it in an airtight container and defrost the day before in the fridge, Enjoy! XOXO Carine

    • You can follow the exact same recipe and cut in 8 even slices. That is the best way to serve 8 people with this recipe. Enjoy the low carb recipes on the blog. XOXO Carine.

    • I am using erythritol or monk fruit stevia blend in this recipe not pure stevia! Stevia is way too bitter and strong for baking. Make sure you use the same brand as I do for success. You can find the product here. Enoy the recipes on the blog. XOXO Carine.

  2. I am new to sugar free baking. and I am confused by the sugar free substitute for sugar. in the strawberry sugar free lemon pie. Can I use Truvia, .the spoonable type,. for the sugar substitute? If so, do I use the amount called for in the recipe?

    Thank you.

    • I am not familiar with truvia, it is not sold where I live in New Zealand, but any sugar free blend made of stevia and erythritol are perfect for this recipe. Enjoy! XOXO Carine

  3. II am new to making sugar free pastries. Can I use spoonable Truvia for the sweetner in both the crust and the lemon curd? Do I use the amount specified in the recipes?

    Thank you for your help!

    • If truvia is a blend of erythritol and stevia that can be use as a 1:! ratio sugar substitute, then yes, same amount is fine. I never used Truvia before, not sold in my country so I am unsure how it works. Enjoy the sugar-free recipes on the blog, XOXO Carine.

  4. 5 stars
    Fait le 10 mars 2018. Remplace par sucre blanc mais 1/8 de sucre la prochaine fois mettre 1/4 de tasse de sucre, fait avec fraises et chocolat

  5. 5 stars
    Hello…Will definite try it!! Thanks for sharing. Just one question, how much gr of coconut oil should i use? It doesnt says. Thanks 🙂

    • Hi! I am so sorry for the missing ingredient! I just updated the recipe card 🙂 I used 1/2 cup coconut oil for the lemon curd ! You’ll love this simple lemon pie. Thanks for reading the blog or should I say proofreading !!! haha XOXO Carine.

      • Hi! I’m in the middle of making this pie. I’m up to the meringue part, but I noticed that it doesn’t have to be cooked at all. Is this safe for consumption since they are raw egg whites? If anyone has an answer I would really appreciate it!

        • Yes it is ! Many French dessert contains raw egg white like chocolate mousse or pie meringue. You can return the pie to the oven at 80C to brown the top if you like but it is optionnal. Make sure you store the pie in the fridge and eat within few days. Enjoy, XOXO Carine.

    • So true! Lemon are available all the year and it is always a winner dessert. I just checked your blog BTW, it is such a great source of Low carbs recipes. I will try some of them soon 🙂 See you soon on the blog Vicky. Carine. xx.

  6. 5 stars
    I must leave a comment! I am not a good baker at all but this was a no fail recipe and the taste, texture is perfect. Remind me my nana pie.

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