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Keto Lemon Bars

Keto lemon bars are one of our absolute favorite desserts. Make a batch of these for your next get together or keep the whole pan to yourself!

Tart and Tangy Keto Lemon Bars

Be sure to leave us a comment and a ★★★★★ review!
Tart and Tangy Keto Lemon Bars

Keto Lemon Bars

Yield: 16 servings
Prep Time: 5 minutes
Cook Time: 30 minutes
Total Time: 35 minutes

Keto lemon bars are one of our absolute favorite desserts. Make a batch of these for your next get together or keep the whole pan to yourself!


For the crust...

For the lemon filling...


  1. Preheat oven to 350°F
  2. Mix all crust ingredients together and place into a 9x13 cake pan
  3. Flatten the mixture evenly over the bottom of the cake pan
  4. Place the pan into the oven and bake for approximately 10 minutes, or until the crust starts to turn a light golden brown; remove from oven and let cool
  5. Place all of the filling ingredients except the xantham gum and powdered erythritol into a high-speed blender
  6. Blend all ingredients together for several seconds
  7. Pour mixture into a saucepan and place over low heat
  8. Stir/whisk continually for roughly 5 minutes before adding the xantham gum in slowly until all is added
  9. Continue to stir until mixture is heated through and begins to thicken
  10. Strain the mixture through a sieve as your pour it overtop the crust; make sure to spread the filling evenly
  11. Bake 15 - 20 minutes at 350°F or until the lemon mixture is well set and cooked through
  12. Remove from the oven and sprinkle with powdered erythritol
  13. Slice, serve, and enjoy!

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Nutrition Information
Yield 16 Serving Size 1 square
Amount Per Serving Calories 200Total Fat 10gCarbohydrates 3gProtein 0g


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Thursday 14th of May 2020

Sooooo delicious! I tasted one once cooled and went back for 2 more! Surprising my husband with these. Hopefully there will be some left when he arrives from the office. I followed the directions and it was perfect! Loving the keto way of life for 1 year now!

Logan Childress

Thursday 21st of May 2020


So glad you liked it!


Monday 27th of April 2020

I am so excited to try this recipe! I am new to the keto lifestyle and so far I am loving it! My worst craving has been sweets and I love lemon bars! I have found several other recipes but this is the closest one I have found to my moms recipe!

Logan Childress

Sunday 17th of May 2020


So glad you like it!


Sunday 15th of December 2019

In the instructions for the filling you say add all the ingredients except the xantham gum and powdered sweetener. Is that both of the powdered sweetners or does one of them go in the filling?


Sunday 15th of December 2019

Never mind I didn’t read it correctly 😂


Monday 17th of June 2019

Can I use the powdered monk fruit instead of the erythritol that some of your recipes call for? Thank you!

Logan Childress

Monday 17th of June 2019


You can, but even as much as I love Lakanto products, I do feel their powdered sweetener has a bit of an aftertaste. Erythritol (at least to me) does not.


Sunday 21st of April 2019

I can't eat almonds. What would be a good substitute for the almond flour?

Logan Childress

Monday 22nd of April 2019


The easiest thing to do would be to substitute it for coconut flour. You'll need to add some extra butter (probably 2 - 3 tbsp more) to make it moist enough to work with, but it should work out for you.

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