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+ servings
Keto Lemon Bars

Keto Lemon Bars

Keto lemon bars are extremely refreshing and light tasting with the sweet and sour flavors you love at only 3g net carbs. A great spring and summer dessert these low carb, tart bars you won't have to miss out on during this summer while following a sugar free diet!
3.77 from 21 votes
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Course Dessert, Snack
Cuisine American
Servings 9 squares
Calories 200.2 kcal


Almond flour crust

  • 1.5 cup blanched almond flour
  • 3 tablespoon unsalted butter
  • 2 teaspoon butter extract

Lemon Bar-Wet

  • 3 large eggs
  • 1 large egg yolk
  • 1/2 cup lemon juice
  • 2 teaspoon lemon extract
  • 2 teaspoon vanilla extract (optional)
  • 1 teaspoon liquid monk fruit or stevia (for added sweetness)

Dry Ingredients

  • 1/4 cup blanched almond flour
  • 2 tablespoon coconut flour
  • 1/2 cup granulated sweetener
  • 1/4 teaspoon salt


Almond flour crust

  • Preheat oven to 350°F
  • Combine all ingredients and press down evenly into an 8x8 baking dish. Bake for 12 minutes in preheated oven then remove and allow to cool
  • To cool quicker place in refridgerator but make sure it's cool before adding the filling

Lemon bars

  • Preheat oven to 325°F
  • Combine all dry ingredrients and set to the side
  • In a mixing bowl crack 3 eggs and 1 egg yolk then whisk. Then add lemon juice, extracts and liquid sweetener
  • Whisk in all dry ingredients until smooth and combined. You'll notice it thicken up rather quickly
  • Pour on top of cooled crust and bake for 25 minutes. Make sure custard top is smooth and not any loose liquid.
  • Remove and allow to cool completely on rack. You can eat it now but I suggest the refriderator for at least 2 hours to allow the top to set firmly


Helpful Recipe Tips

  • Fresh lemons or lemon juice, it does make a difference in flavor but I use the lemon juice in the store most times. And, I still enjoy the recipe at the end of the day without all the added hassle of hoping I get enough juice from the lemons I have, to avoid having to run back to the store to buy more.
  • Try it crustless, I have made it crustless twice and I like it that way as well. Not to mention I can eat even more guilt free!
  • When is it done, the keto lemon bars are done between 20-25 minutes but make sure when you pull them out the custard is set across the entire top, No runny or loose areas.


Nutrition Facts
Keto Lemon Bars
Amount Per Serving (1 bar)
Calories 200.2 Calories from Fat 156
% Daily Value*
Fat 17.3g27%
Saturated Fat 4.2g26%
Trans Fat 0.2g
Cholesterol 92.3mg31%
Sodium 27.9mg1%
Carbohydrates 6.3g2%
Fiber 3g13%
Sugar 1.6g2%
Protein 7.2g14%
* Percent Daily Values are based on a 2000 calorie diet.
Keyword Keto Lemon Bars
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