The Best Ever Keto Lemon Pie

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This light and refreshing Keto Lemon Pie with a crunchy, delicious pecan crust is easy to make, full of incredible flavor, and the perfect low-carb dessert.

keto lemon pie plated on a white plate with a fork and lemon slices

Keto Lemon Pie Recipe

It is finally spring, and I am ready for fresh fruity cold desserts to celebrate the warm weather. Mousse or fluff-type desserts are easy to make, with so many options to change the flavor. This Keto Lemon Pie is the first recipe that I’ve added a crust. I thought that a pecan crust would be amazing, along with the fresh lemon flavor in the Keto Lemon Pie. The crust is so simple, with only three ingredients, so it takes very little effort. I think it tastes best if you pop it in the freezer for an hour or two before serving, and it slices much better. I have included step-by-step pictorial instructions below for your convenience.

Keto Lemon Pie Ingredients

Pecans: Pecans are a great option for keto recipes as they provide a good source of good fats and make a perfect crunchy keto pie crust for this delicious pie. 

Cream Cheese: Be sure to check the carb count; some brands contain more than others. I’ve found Philadelphia brand cream cheese to have fewer carbs than most other generic brands.

Heavy Whipping Cream: This is a staple in the keto diet as it provides lots of fat, and for this pie, it provides the desired consistency.

Swerve Confectioners and Granular: I use Swerve confectioners and Swerve granular for sweeteners in this recipe, but you could substitute Lakanto Monkfruit Classic and Powdered at the same measurement. They provide sweetness without the added carbs in regular sugar.

Step-by-Step Keto Lemon Pie

pecan and butter pie crust

The first step is to crush the pecans. I used a mini food processor to crush my pecans, but you can crush them manually instead. Add Swerve granulated sweetener to the crushed pecan mixture and pulse to combine all ingredients. Pour pecan crust into a greased pie pan and use the back of a greased spoon to smooth and spread the crust. Continue to press and smooth out the pie crust until the bottom, and the sides of the pan are covered.

heavy whipped cream

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Step 2: In a bowl, use a mixer to beat heavy whipping cream. Continue beating for several minutes on medium/high until the heavy whipping cream begins to form stiff peaks.

ingredients for keto lemon pie in a bowl

Step 3: Add softened cream cheese (Philadelphia has the least amount of carbs compared to generic versions), Swerve confectioners, and vanilla. Then, zest and juice the lemons. I used a lemon Zester and a citrus juicer to make this job much easier! Add lemon zest to filling.

Ingredients in the low carb keto pie crust

Step 4: Pour lemon pie filling into the pecan pie shell and spread. We think it tastes best if you pop the Keto Lemon Pie in the freezer for an hour or two before serving.

Keto lemon pie filling

 Completed keto lemon pie

Enjoy!!!! YUMMMM! It is sooooo good. If you freeze it before cutting the Keto Lemon Pie, the slices serve up much better. I got a little impatient here.


You can access all of my recipes in my Keto/Low Carb Recipe Index or follow me on Pinterest.  If you are just getting started following a keto diet and would like more information, there are tons of fantastic resources. Amazon has several great books you may want to check out here.

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4.64 from 104 votes

Keto/Low Carb Lemon Pie

This Keto Lemon Pie is the first recipe that I've added a crust. I thought that a pecan crust would be absolutely amazing along with the fresh lemon flavor in the Keto Lemon Pie. The crust is so simple with only three ingredients, so it takes very little effort. I think it tastes best if you pop it in the freezer for an hour or two before serving and it slices much better. I have included step-by-step pictorial instructions below for your convenience.
Prep Time15 minutes
Cook Time10 minutes
Freeze1 hour
Total Time25 minutes
Course: Dessert
Cuisine: American
Keyword: Keto Lemon Pie
Servings: 8
Calories: 377kcal
Author: Kasey Trenum


For the Crust:

For the Lemon Pie Filling


For the Crust:

  • Preheat oven to 350 degrees. Crush pecans finely. I used a mini chopper.
  • Add butter and Swerve granular to crushed pecans and mix thoroughly. I added the ingredients to my mini processor and pulsed until all of the ingredients were combined. 
  • Grease a pie pan then add crust mixture. 
  • Grease the back of a spoon and use it to carefully smooth the pecan mixture in the bottom of the pie pan and up the sides. 
  • Bake for 10 minutes and allow to cool.

For the pie filling:

  • In a large bowl, beat the heavy whipping cream until it forms stiff peaks.
  • Add the softened cream cheese, Swerve Confectioners, and vanilla to the heavy whipping cream and beat on medium speed until the mixture is smooth. 
  • Add lemon juice and lemon zest then beat again. *You may need more or less lemon juice and zest depending on the ripeness of your lemons. Make sure to taste the mixture as you are preparing the recipe.
  • Pour filling mixture into pecan crust and freeze for 1 to 2 hours before serving. (You may store pie in fridge and pop in the freezer for about an hour or two before serving.)



The sugar alcohols in Swerve are not calculated in nutritional information. Nutritional information is only an estimate based on ingredients used in my kitchen. It is always best to calculate your own macros. 


Calories: 377kcal | Carbohydrates: 4g | Protein: 4g | Fat: 39g | Saturated Fat: 12g | Cholesterol: 68mg | Sodium: 152mg | Potassium: 98mg | Fiber: 1g | Vitamin A: 750IU | Vitamin C: 4.9mg | Calcium: 40mg | Iron: 0.4mg
Tried this recipe?Mention @kaseytrenumblogger or tag #kaseytrenumblogger!


  1. 5 stars
    This is an awesome recipe!!!! And the crust is SO GOOD! I made it for our neighborhood euchre club night and no one could tell it wasn’t made with grains or sugar!
    Thanks for sharing this!

  2. 5 stars
    I have made this recipe with lemon, raspberry and strawberry – lemon is our favorite with berries on top! Best lemon pie ever!!!

    1. Wow! Thank you so much for taking the time to comment and leave a 5-star rating. I’m so glad you loved it.

  3. 5 stars
    I have made a pie crust using almond flour and pecan flour. Toast them both in a skillet a few minutes, add melted butter and some sweetner and it was like a graham Cracker crust! This will be the perfect pie to put in it!

    1. That sounds wonderful! I avoid almond and pecan flour as my oldest daughter has an off-the-chart nut allergy. However, this sounds so good!

    2. Hey Paulette, this pie is really great! The pie has a pecan crust with only 3 ingredients. The instruction for the pie crust are right at the beginning of the post. Let me know how it turns out!

  4. 5 stars
    I’ve been making this (and almost ALL of your other recipes) since you first posted them. This pie is soooo good! We are having it for dessert with Creamy Parmesan Pork Chops tonight. Can’t wait! It’s my favorite!

    1. Hi Diane, I haven’t tried using one of those sweeteners in this recipe so I can’t speak to how it will turn out from experience. Sorry! Hope it turns out great!

    1. Thanks, Tina! A great part of being a cook or baker is getting the first taste!! So glad you enjoyed it!

  5. 5 stars
    I just made my third lemon pie using your recipe and everyone who has tasted it love it, including me! It’s one of the best Keto desserts I have tasted! Am perusing your other recipes via Pinterest!😊

    1. Hey Bridgette, I love this pie too!! It is so good. Especially during the summer.

    1. I haven’t. Sounds delicious though! Let me know if you try it out. Always looking for ways to shake things up!!

  6. I made this pie and just fyi… It was delicious. Actually I’ve made many of your recipes and all have been wonderful. I recommend your site to others.

    1. Absolutely. I store mine in the fridge then toss it in the freezer for a couple hours before serving. Let me know how it turns out!

  7. 5 stars
    This is the best dessert I have ever made! The pecan crust is absolutely amazing! My very health conscious son even took some home after he tried it with lunch. Thank you so much for creating such a divine dessert!

4.64 from 104 votes (78 ratings without comment)

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