Keto Lemon Bars


Keto Lemon Bars are the perfect treat to satisfy your sweet tooth and your desire for something a little bit zesty and tangy. These keto lemon bars are also a breeze to make! We think these will become one of your new favorite keto dessert recipes!

If you’re like me, you love the irresistible combination of sweet and tangy. The two flavors, while seemingly opposite, work together perfectly to create an amazing flavor that we all love!

One of my all-time favorite desserts is Keto Lemon Pound Cake! The moist, zesty cake drizzled with a generous amount sweet icing is to die for. 

These keto lemon bars are an even tastier (and easier to make) version of that classic recipe!

The key to any good lemon dessert is the use of fresh lemon juice and zest. I mean, these keto lemon bars will still taste great, even if you don’t use fresh squeezed lemon juice. 

But, we think that everything tastes better when fresh, quality ingredients are used!

top view of two slices of keto lemon bars with a bag of lakanto sweetener next to plate

Keto Lemon Bars Made With Lakanto’s Monkfruit Sweetener

We absolutely love Lakanto’s Monkfruit sweetener. We use some form of this healthy and delicious sweetener in every single dessert that we make!

Lakanto’s Monkfruit is an all natural, incredibly delicious, zero-glycemic sweetener that has a 1:1 ratio to sugar. This is especially helpful when converting traditional recipes into keto friendly or low-carb recipes!

For these keto lemon bars, we harnessed the great taste of Lakanto’s granulated Monkfruit. Granulated Monkfruit is a granulated sugar substitute. Unlike, many other keto-frinedly sweeteners on the market, Lakanto’s Monkfruit has no bitter or cooling aftertaste.

If you want to try Lakanto’s Monkfruit for the first time, or if you just need to restock, shop their website and use our code, “BUTTERTOGETHER” at checkout to save 20% off your entire purchase!

This code is valid for every item on their site (including their delicious mixes and syrups!), not just sweeteners!

Zero Carbs In Monk Fruit Sweetener

Other than the incredible taste, the best part about Lakanto’s Monkfruit is that it contains ZERO net carbs! That means that you can bake away without having to worry about excess carbs. 

The reason that this Monkfruit contains zero net carbs is because the four carbs per serving come from sugar alcohol. Sugar alcohol tastes sweet (which is great!!), but our bodies don’t recognize them as sugar and thus can’t metabolize (which is even better!!)! 

How To Make Keto Lemon Bars 

almond flour in a measuring cup over a mixing bowl

(scroll down for full recipe card with full list of ingredients & instructions)

Add Almond flour to mixing bowl.

sweetener in a measuring spoon over a mixing bowl

Add Lakanto Classic Granular Monkfruit. 

melted butter in a small ceramic dish

Add melted butter, eggs, and vanilla extract. 

holding half a lemon over a mixing bowl

Juice in two large lemons.

lemon zest being adding to mixing bowl

Add zest from one lemon. 

batter poured in a ceramic pan, spread evenly

Spread the mixture into a 9×9 baking dish and bake for 25-30 minutes until cooked through. 

powdered sweetener dusted on top of keto lemon bars

Tips for Making The Best Keto Lemon Bars

You really can’t go wrong in making these keto lemon bars. They’re so easy to make, and they don’t require very many ingredients. 

However, we’ve got a few tips to help ensure that these incredible keto lemon bars turn out tasting as amazing as they should.

  • Lemon Zest –  When zesting, make sure that you only zest the outer layer of the peel and not the white part nearest the fruit. This part of the peel is extremely bitter. The bright yellow part of the lemon is where the flavor is at. We love this zester on Amazon.
  • Fresh Lemon Juice – We are big fans of convenience. Convenience just makes life easier. And using bottled lemon juice is undoubtedly more convenient than juicing a lemon. However, in this case, the slight inconvenience is so worth it! Nothing tastes better than fresh lemon juice in these keto lemon bars. Plus, you’ll need the zest of the lemon anyway!
  • Dust Keto Lemon Bars – While we used granulated Monkfruit for the batter, we used Lakanto’s Powdered Monkfruit to dust the tops of these keto lemon bars. The light, airy sweetness of this incredible powdered sugar substitute adds a layer of sweetness and flavor that makes these keto lemon bars taste even better! Lakanto’s powdered sweetener has all of the same amazing qualities of their granulated sweetener, just in powdered form. 
two slices of keto lemon bars close up on a plate

Storing Keto Lemon Bars

If self control is your strong suit (and kudos to you if it is) and you end up with enough leftovers that some will need to be stored, fear not! These incredible keto lemon bars are super easy to store and taste great out of the fridge or freezer.

  • Refrigerated: store in an airtight container and these keto lemon bars will last for two weeks in the fridge.
  • Freezer: store in a freezer bag or airtight container and these keto lemon bars will keep for up to three months! Allow to thaw before enjoying. 
bag of lakanto sweetener next to keto lemon bars on a plate

Where Can I Find Lakanto’s Monkfruit Sweetener?

Many varieties of Lakanto’s Monkfruit sweeteners can likely be found in your local health food store. Granulated Monkfruit may even be available at your local supermarket!

However, unless we’re in a pinch, we prefer to order our Monkfruit directly from Lakanto! Lakanto offers more options if you order directly from their website, and the price is typically better when ordering directly from Lakanto! Especially if you use a discount code! 

As a reminder, you can use our code, “BUTTERTOGETHER” at checkout onLakanto’s site to save 20% off your entire order! This code is valid site wide!

More Lakanto Sweetened Recipes

Click HERE To Pin Keto Lemon Bars 

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40 minutes

9 servings


2 cups Almond flour
1 tsp Vanilla extract
½ cups Lakanto Granular Monk Fruit Sweetener
8 Tbsp Butter, melted
3 Large eggs
2 Large lemons juiced
Zest from one lemon
Lakanto Powdered Monk Fruit Sweetener for dusting
Nutritional Information
253 Calories
21g Total Fat
2.5g Net Carbs
7.5g Protein


Preheat the oven to 350 degrees.
Place all of the ingredients into a mixing bowl, and beat on high until smooth.
Spread the mixture into a 9x9 baking dish.
Bake for 25-30 minutes until cooked through.
Let cool to room temperature, and then dust with Lakanto powdered sugar substitute before serving.

Recommended Products

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Classic Monkfruit 1:1 Sugar Substitute
Powdered 1:1 Monk Fruit Sweetener, Sugar Substitute

Nutritional Disclaimer: We are not certified nutritionists. Nutritional data is provided as a courtesy. The information provided is calculated through a free-web based nutrition calculator and is not guaranteed to be accurate. To ensure we provide you with good information, we look at a variety of calculators.