Keto Lemon Bars – Low Carb Dessert

These keto lemon bars have a thick, rich buttery shortbread-like crust and a silky, tangy lemon custard on top. The perfect recipe to have as a keto recipe because a serving has only 2g net carbs. Dust of powdered sweetener is all you need to make this recipe even better.

Keto Lemon Bars Recipe - Try these easy, sugar-free lemon bars that have only 2g net carbs and very tasty! You will never believe they are keto friendly, low calories, low carb and sugar free! | #Glutenfree #Lowcarb #keto #sugarfree #healthy via @lowcarbspark

Without any doubt, I’m a dessert kind of girl. I remember eating all the sweets at family dinners before getting to the main course. This lemon bar recipe is special to me because my grandmother used to make it all the time.

If you are craving something refreshing on a keto diet and think that fruits are not an option, I’m here to tell you that there are few you can choose low carb fruits that are keto approved.

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To make Keto Lemon Bars you will need:

keto lemon bars recipe

You’ll never want to buy premade keto bars ever again. The taste is on point, the texture is fantastic, and the macros are incredible. So go ahead and bake this lemony goodness, it takes less than 10 minutes to mix all the ingredients.

  • 8X8 inch pan
  • Parchment Paper

For the crust

  • 1 1/2 cup almond flour
  • 1/2 cup butter
  • 1/4 cup erythritol, powdered
  • 1 tsp vanilla extract
  • 1/8 tsp salt

For the lemon filling

  • 3 medium lemons or about 3/4 cup lemon juice
  • 3 large eggs, at room temperature
  • 3/4 cup almond flour
  • 3/4 cup erythritol, powdered

Tips to make perfect keto lemon bars

keto lemon bars keto dessert

  1. To get as much juice as possible from the lemons roll it roughly on the counter, pressing the lemon. This trick will help the lemon to loosen up the juices. You’ll need about 2/3 cup lemon juice.
  2. Using ingredients at room temperature is the key to perfect lemon bars.
  3. Make powdered erythritol at home. If you only have granular erythritol you can quickly turn it into powder by using a coffee grinder or a blender.
  4. Try to spread the crust as even as possible. Use a spatula or the back of a glass to make this step easier.
  5. After baking the keto, crust let it completely cool before adding the filling.
  6. Serve them cold from the refrigerator. I noticed that letting the keto lemon bars overnight brings out much flavor.
  7. If you want a thinner crust, use only 1 cup almond flour and adjust the butter until your crust dough sticks together. This lemon recipe has a thick crust because that’s how I love it.

Do you like lemon desserts that are quick and low in carbs? You have to try my quick and easy lemon poppy seed keto mug cake recipe.

keto lemon bars easy keto recipe

How many carbs per each lemon bar?

I cut my keto lemon bars into 16 squares, and each has only 2g net carbs.

Don’t freak out if you count the macros for this keto recipe and get different results. To figure out net carbs, you have to subtract sugar alcohols and fiber from the total carbs because they pass through our digestive system without affecting the insulin levels.

What can I use instead of erythritol to make these keto lemon bars?

If you don’t have erythritol in your pantry, you can use another low carb sweetener such as monk fruit sweetener to make amazing sugar-free keto low carb lemon bars. If you are following a paleo diet and carbs are not the main focus, you can use coconut sugar or honey.

How many carbs have lemons?

You probably wonder how many carbs are in one lemon. I drink a glass of warm water with 2 tbsp lemon juice each morning because it has many health benefits including improved digestion. Let me tell you that lemons are low in carbs and one medium lemon has:

  • 8g carbohydrates
  • 2.4g fiber
  • 5.6g net carbs
  • 24 calories

Can I use coconut flour instead of almond flour?

For the filling, you can use 2 tbsp coconut flour instead of the almond flour. You’ll get the same results: a delicious smooth custard. To make the crust use 1 cup coconut flour.

Keto Lemon Bars Recipe

keto for fat loss

Keto Lemon Bars - Low Carb Dessert

keto lemon bars keto dessert
3.75 from 12 votes

These keto lemon bars have a thick rich buttery crust and a silky tangy lemon custard on top. With only 2g net carbs per serving, you can enjoy a decadent keto dessert.

Course Keto Dessert
Cuisine American
Keyword keto lemon bar
Prep Time 10 minutes
Cook Time 1 hour
Resting Time 20 minutes
Total Time 1 hour 10 minutes
Servings 16 keto lemon bars
Calories 126 kcal

Ingredients

For the crust

For the lemon filling

Instructions

  1. Preheat the oven to 350F and line an 8X8 baking pan with parchment paper. Set aside. 

  2. In a food processor, add the almond flour, melted butter, powdered erythritol vanilla extract and a pinch of salt. Process until a dough forms. You can use a hand mixer.

  3. Evenly press the dough into the pan and bake until lightly golden brown, about 15 minutes. Once cooked, let cool for at least 30 minutes.

  4. Meanwhile, prepare the filling. Juice all the lemons and add them to a medium bowl.

  5. Over the lemon juice, add two room temperature eggs, the sweetener, lemon zest and whisk for 30 seconds. Don't use a hand mixer because overmixing the ingredients will turn your keto lemon bars will crack when baked.

  6. Stir in the almond flour and pour the topping over the cooled crust whisking while pouring to ensure that all the ingredients are evenly combined.

  7. Bake for about 25 minutes or until the filling has set. Let it cool completely before slicing. Refrigerate for at least 2 hours before slicing. Use a sharp knife to cut them into squares. Enjoy!

Nutrition Facts
Keto Lemon Bars - Low Carb Dessert
Amount Per Serving (1 keto lemon bar square)
Calories 126 Calories from Fat 108
% Daily Value*
Total Fat 12g 18%
Saturated Fat 4g 20%
Cholesterol 49mg 16%
Sodium 86mg 4%
Potassium 22mg 1%
Total Carbohydrates 3g 1%
Dietary Fiber 1g 4%
Protein 3g 6%
Vitamin A 4.7%
Vitamin C 3.2%
Calcium 4.2%
Iron 4.4%
* Percent Daily Values are based on a 2000 calorie diet.

All text & images © Copyright Ioana for LowCarbSpark.com.

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