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Keto Lemon Bars

4.91 from 11 votes

These soft and creamy keto lemon bars will MELT in your mouth!

Lemon Bar Keto Dessert Recipe

If you like lemon desserts, this recipe is for you.

With just 6 ingredients, you’ll fall completely in love with the impossibly smooth and melt-in-your-mouth texture.

The recipe will remind you of something between a lemon bar and a cheesecake, which basically makes them impossible to resist. I’ve already made them at least ten times!

Also Try This Whipped Coffee Recipe

Keto Lemon Bars Recipe

Easy Keto Lemon Bar Recipe

The lemon squares are great for company, or for an easy weeknight dessert.

Just blend everything together, layer it into a pan, and let the oven do the work.

With no eggs or dairy, as well as flourless, sugar free, gluten free, low carb, paleo, and vegan options, these homemade keto lemon bars are sure to be a hit with everyone who tries them.

Note: If you’re not on a low carb or keto diet and want to use regular sugar for the lemon bars, there’s a non-keto version of the recipe as well.

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How To Make Keto Lemon Bars

Start by reading through the recipe and gathering all ingredients.

Preheat your oven to 350 degrees Fahrenheit. If you’re using a crust, combine all of the crust ingredients in a mixing bowl, then smooth the dough evenly into a parchment-lined 8 inch baking pan.

Combine the cream cheese, yogurt, lemon juice and zest, powdered erythritol or powdered sugar, almond flour or cornstarch, and optional turmeric in a blender just until smooth. (Beating too much can cause cracking due to beating in added air.)

Pour the filling into the prepared baking pan, and cook on the oven’s middle rack for 25 minutes.

Once time is up, leave the oven door completely closed, turn off the heat, and let the pan sit in the closed oven for 8 minutes, during which time it will slowly start to cool down.

Remove the underdone lemon bars and set them on the counter to continue cooling gradually. Once cool, refrigerate a few hours or overnight, during which time they will firm up considerably.

Leftover lemon squares can be refrigerated or frozen to thaw and enjoy in the future.

Lemon Square Tips and Tricks

High heat, over-beating, and sudden changes in temperature can all cause cracking in cheesecake square recipes, but I’ve picked up a few great tricks over the years to make cracked bars a thing of the past:

The best of these tricks is to fill a baking pan about 2/3 of the way with water and place it on the lower oven rack (you’ll bake the cheesecake bars on the middle rack). The water will add moisture to the oven so that your bars won’t dry out as they cook.

Bring the cream cheese to room temperature before starting so that you won’t have to beat it as long to get the batter smooth. And avoid rapid temperature changes by letting the bars cool – first for a few minutes in a turned-off oven, and then on the counter – before refrigerating until firm.

Lemons

Keto Lemon Bar Ingredients

Here’s what you’ll need to make the recipe: cream cheese or vegan cream cheese, plain yogurt (dairy free if desired), lemon juice, lemon zest, powdered erythritol or sugar, almond flour (or cornstarch for a non keto lemon bar), and an optional pinch of powdered turmeric or yellow food coloring.

Even more than the lemon juice, it’s the lemon zest that gives these bars their bold lemon flavor, so do be sure to include it.

To make your own lemon zest, simply wash a lemon and use a zester or grater to shred the peel. If you don’t have one of these gadgets, use a vegetable peeler and then finely dice the skin with a sharp knife.

Leftover lemon? Use it up in this Cauliflower Alfredo Sauce

Above, watch the keto lemon bar recipe video

The Best Keto Snack Lemon Bar Recipe Low Carb

If desired, top with sliced lemon and Coconut Whipped Cream.

Pin it now to save for laterPin Recipe

Keto Lemon Bars

These soft and creamy keto lemon bars will melt in your mouth.
Prep Time 8 minutes
Cook Time 25 minutes
Total Time 33 minutes
Yield 12 – 16 squares
4.9 from 11 votes

Ingredients

  • 12 oz cream cheese or vegan cream cheese
  • 1 cup yogurt, dairy free if desired
  • 2 tbsp lemon juice
  • 2 tsp lemon zest
  • 1/2 cup erythritol, or powdered sugar for non-keto
  • 3 1/2 tbsp almond flour (or 2 1/2 tsp cornstarch)
  • optional 1/8 tsp turmeric for color

Optional Crust

Instructions

  • *The lemon zest is important, so be sure to include it. I like to use a water bath (see above for explanation) but it's not required.
    Preheat the oven to 350 F. Combine the crust ingredients, if using. Press into a parchment-lined 8×8 pan. Meanwhile, combine remaining ingredients in a blender or food processor until smooth. (Don't over-beat, which could cause cracking.) Pour over the crust, and bake 25 minutes. Do not open the oven door (not even to check), but turn off heat and let sit 8 minutes. Take out the still-undercooked bars and let cool completely, then refrigerate a few hours until firm. Leftover bars can be refrigerated or frozen.
    View Nutrition Facts

Notes

The recipe was adapted from this Keto Cheesecake, and the crust was adapted from my Keto Cookies.
 

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Published on November 11, 2020

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21 Comments

Leave a comment or reviewLeave a rating
  1. Amy Grayson says

    I made these last night, with orange instead of lemon and oh my they were even better than the pictures make them look! Thank you for this recipe 🙂

  2. Patti says

    Do you think these could be cooked in individual silicone cupcake molds? Like you would for mini-cheesecakes? I can’t normally trust myself with a whole pan of anything!

  3. Cathy says

    I made these using regular cream cheese and Greek yogurt. (We don’t need to be dairy free) So yummy and lemony! This will be my go to recipe for baked cheesecake from now on. I can’t wait to try this with chocolate. Definitely a hit in my house

  4. Sonserae says

    Good Lawd! These were AMAZING plus as an added bonus they fit in perfectly with the custom keto meal plan I have been following for the last 6 weeks.

  5. Nicole says

    I’ve made these twice now and they have a great flavor and nicely offset the cooling effect you sometimes get with artificial sweetener. Could I substitute an egg for the cornstarch? I’ve tried blending the corn starch straight in to the batter and mixing it first with the lemon juice, but both times I’ve ended up with significant lumps in the batter that don’t melt out all that well. Any suggestions? Thank you!

  6. Kathleen Beyer-Paulsen says

    These were very good, and easy to make; the water bath idea and having the cream cheese at room temperature helped avoid cracking. I didn’t make the keto version; just used cane sugar.Almond flour crust was good too. I guessed a bit at the measurements of the vegan cream cheese and the yogurt because they don’t sell them in 12- ounce and 8- ounce sizes but it was fine; even substituted a couple ounces strawberry yogurt when I ran out of plain. Didn’t use whipped topping.

  7. Kathleen Beyer-Paulsen says

    These were very good, and easy to make; the water bath idea and having the cream cheese at room temperature helped avoid cracking. I didn’t make the keto version; just used cane sugar.Almond flour crust was good too. I guessed a bit at the measurements of the vegan cream cheese and the yogurt because they don’t sell them in 12- ounce and 8- ounce sizes but it was fine; even substituted a couple ounces strawberry yogurt when I ran out of plain. Didn’t use whipped topping.

  8. Juanita says

    Would this recipe work in a mini-muffin tin? Would I need to make any changes and, if not, how many mini-muffin cups would 1 recipe fill? Trying for easy portion control here! 😉

  9. Jessica says

    Thank you for the lemon bar recipe base ( I say ‘base’ because I almost always have to change things for dietary reasons). They turned out pretty decent. I was excited to try them after a good many years without. I will add more lemon zest next time, as these were a little weak in that area for me. I can’t do dairy, so I used unsweetened coconut yogurt and vegan cashew cream cheese. I only use stevia, so I substituted 3/4 tsp, that was just about right. I put a pinch of salt in the crust, because I like the contrast.

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