Super Simple 5-Ingredient Keto Lemon Bars

With a light and tart lemon filling and a decadently buttery and sweet crust, these keto-approved lemon bars are only made from 5 ingredients (most of which you can already find at home), and are super simple to make and consume.

Sometimes you’re in the mood for an intensely rich dessert—think chocolate cake or ice cream—and other times, you crave something a bit lighter. Making lemon bars during the summer or when you want something fresh and fruity is a great way to use up any old lemons lying around the house. Plus, the contrast between the slightly tangy filling and the sweet crust is definitely worth savoring!

Unlike a typical shortbread or pastry crust accompanying regular lemon bars, our keto-friendly crust is lower in carbs but has as much flavor. Adding in erythritol as a sugar substitute combines beautifully with the richness of salted butter, which provides a great base to the lemon topping.

After combining the ingredients in the filling together, you’ll want to bake it so the eggs can set and bind the mix well. Feel free to top it off with some fresh berries, an additional sprinkling of erythritol, or even more lemon zest. If you want to lean into the freshness of the lemons, leave the bars in the fridge until you’re just ready to serve.

Read the full recipe with full nutrition breakdown and step-by-step pictures over at:


1 cup almond flour
1/4 cup erythritol
1/2 cup butter

Lemon Filling:
3 medium lemons, juice and zest
3/4 cup erythritol, powdered
3/4 cup almond flour
3 large eggs
pinch salt

Nutrition Summary: This makes a total of 8 servings of Super Simple 5 Ingredient Keto Lemon Bars. Each serving comes out to be 287 calories, 25.8g fats, 4.4g net carbs, and 8.2g protein.


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  1. @Granaidh on March 10, 2024 at 4:10 pm

    Keen to try this recipe

  2. @TheProudWife515 on March 10, 2024 at 4:24 pm


  3. @malcontent510 on March 10, 2024 at 5:20 pm

    Ohhh this looks outstanding
    Would be great with Meyer lemons

  4. @marcamp5450 on March 10, 2024 at 7:08 pm

    Seeing the addition of 1 cup erythritol makes me shudder. It’s a sugar alcohol made from corn. Has been known to increase the risk of stroke and heart attack. Also can increase blood clots. The recipe does look delicious if something other than artificial sugars could be found.

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