The best keto lemon bars! These sweet and tangy lemon bars are low carb, gluten free and keto approved! Only 2.4 net carbs per square!

Overhead view of a pile of keto lemon bars.

 

When my husband and I got married we didn’t have a traditional vanilla or chocolate wedding cake. We had a delicious tangy lemon cake, it is one of our favorite flavors and I am always working on new lemon desserts.

I tried a ton of other keto lemon bar recipes and none of them were quite right. Some had great flavor but the filling was too runny. Others had a great texture, but the flavor was not right. So after many attempts, I present to you the best keto lemon bars!

Ingredients

You only need six simple ingredients to make these low carb lemon bars! The ingredients needed are: 

  • Almond Flour
  • Coconut Flour 
  • Eggs
  • Keto Friendly Sweetener: Swerve or monkfruit
  • Lemons
  • Butter
Low carb lemon bar filling being poured into a baking pan.

How to Make Keto Lemon Bars 

These low-carb, gluten free lemon bars are a breeze to make! Here’s an overview of the process: 

  1. To make the almond flour shortbread crust, combine melted butter, almond flour and swerve sweetener. A thick dough will form.
  2. Press the dough into the bottom of an 8×8-inch baking dish.
  3. Pre-bake the crust for 7 minutes at 350F and set it aside to cool
  4. To make the lemon filling, combine the eggs, coconut flour, swerve sweetener, lemon juice and lemon zest in a blender or food processor. Blend until smooth.
  5. Chill the mixture for 20 minutes and allow it to thicken.
  6. When the crust has cooled and the filling has chilled, carefully pour the filling over the crust.
  7. Bake 18-20 minutes until the bars are set.
  8. Allow them to cool completely before slicing. 

How Many Carbs Are in Keto Lemon Bars? 

These healthy lemon bars come in at just 2.4 net carbs per square if you slice them into 9 equal servings.

Gluten free lemons bars haphazardly stacked on each other.

Storage

  • These low-carb lemon bars will last up to five days in the fridge. Store them in an airtight container! 
  • These bars freeze beautifully. They can be frozen for up to three months. When ready to eat, thaw overnight in the fridge. 

Tips

  • I recommend using swerve sweetener to make this recipe. I prefer using swerve confectioners, but granulated will work too. 
  • I don’t recommend substituting the coconut or almond flour in this recipe. These are the best grain-free flours I’ve tried in these bars! 
  • This is a great recipe to make a day or two you plan on serving it. Lemon bars keep nicely in the fridge. 

More Keto Dessert Recipes: 

This keto lemon bars recipe is a great size for a sweet treat, but if you are looking for some other keto desserts you may also like:

The best keto lemon bars! These sweet and tangy bars are low carb, gluten free and keto approved! #keto

Get the Recipe: The Best Keto Lemon Bars

The best keto lemon bars! These sweet and tangy lemon bars are low carb, gluten free and keto approved! Only 2.4 net carbs per square!
4.45 from 188 ratings

Ingredients
 

Crust

  • 8 tablespoons melted butter
  • 1 1/4 cups almond flour
  • 2 tablespoons swerve, confectioners is preferable but granular works too

Filling

  • 3 large eggs
  • 2 large lemons, juiced (approximately 1/3 cup lemon juice)
  • zest of 2 large lemons, approximately 2 tablespoons loosely packed zest
  • 3/4 cup swerve, confectioners is preferable but granular works too
  • 1/3 cup coconut flour

Instructions
 

For the filling:

  • Combine all filling ingredients in a blender or food processor.
  • Blend for 30 seconds until completely smooth.
  • Refrigerate for 20 minutes to allow the filling to thicken.

For the crust:

  • Preheat oven to 350 degrees F.
  • Line an 8×8-inch pan with foil or parchment paper.
  • Combine the melted butter, almond flour and swerve in a small bowl and press into the foil lined pan.
  • Prebake crust for 7 minutes. It should not be firm just slightly beginning to brown around the edges.
  • Remove crust and allow it to cool.
  • Pour in filling and bake 18-20 minutes until the center is set.
  • Allow bars to cool completely before slicing.
  • Top with powdered swerve if you prefer.

Notes

Net carbs are 2.4 g per square
Serving: 1 square, Calories: 221kcal, Carbohydrates: 5g, Protein: 6.4g, Fat: 20g, Fiber: 2.6g
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