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    Home > Recipes > Dessert

    Keto Lemon Bars

    March 30, 2022 by bobbiskozykitchen Leave a Comment

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    Pinterest graphic with image of keto lemon bars stacked on top of each other on it.

    This post may contain affiliate links. As an Amazon Associate, I earn from qualifying purchases. Doing so allows me to create more unique content and recipes for you.

    These Keto Lemon Bars are a sugar-free and gluten-free version of the classic lemon dessert bars. A buttery shortbread covered with a delicious lemon custard topped off with sugar-free powdered sugar. This decadent low-carb dessert uses only 7 ingredients, has 3 grams of net carbs per bar, and is sure to please!

     
    Looking for more low carb and keto lemon dessert recipe ideas? Give this Keto Lemon Cake with Blackberry Mascarpone Frosting or Keto Lemon Thumbprint Cookies a try!
     
    Closeup photo of a stack of four keto lemon bars on a white marble countertop.
     
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    MORE KETO & LOW CARB LEMON RECIPES

    Lemon Herb Chicken Salad | Creamy Low-Carb Lemon Vinaigrette

     
     Well, it is supposed to be Spring but you couldn't prove it by me! It is cold, overcast, and drizzly here in Western Washington.

    Duh, right?

    What do you expect Bobbi? You live in Washington!

    I know, I know, but this has been a long hard year and Mama just needs some sunshine, OK? Come on Mother Nature, help a sister out!

    I have my seeds ready, and my planting area ready but the Mr didn't build my raised bed garden again this year. I did my thing on the back deck last year so we will do that again.

    Now, what could possibly put me into the spring frame of mind?

    Lemon!

    Anything and everything lemon just seems to lift my spirits, and my taste buds and put me in a good mood. And babeeee these bars do the job!

    Think buttery shortbread crust, with tangy lemon custard filling, and a sprinkle of powdered sweetener on top.

    Yummmm sign me up for that!!

     
    Overhead photo of the ingredients needed to make Keto Lemon Bars on a white marble countertop.
     

    INGREDIENTS NEEDED TO MAKE KETO LEMON BARS

    Detailed measurements and instructions can be found on the printable recipe card at the bottom of the page.
     
    INGREDIENTS
     
    • Butter
    • Besti Monk Fruit and Allulose powdered sweetener
    • Pink sea salt
    • Wholesome Yum Organic Coconut Flour
    • Lemon zest
    • Lemon juice
    • Eggs

     

    Five photos of the process of making the shortbread portion of Keto Lemon Bars.
     

    HOW TO MAKE KETO LEMON BARS

    STEP 1
    Preheat the oven to 350 degrees F.

    STEP 2
    Line an 8 x 8 baking dish with parchment paper.

    STEP 3
    In a large mixing bowl, using an electric hand mixer, beat together the butter, powdered sweetener, and pinch of salt until creamy and well combined.

    STEP 4
    Stir in the coconut flour until a dough forms.

    STEP 5
    Transfer the mixture into the lined pan and press into place.

    STEP 6
    Bake the shortbread crust for 10 minutes, or until golden. Remove from the oven and allow to cool for 30 minutes.

    Six photos of the process of making the custard portion of Keto Lemon Bars.
     
    STEP 7
    In a separate mixing bowl, combine the softened butter, lemon zest, lemon juice, and powdered sweetener with an immersion blender or high-speed hand mixer. 
     
    STEP 8
    Once it is smooth, add your eggs, extra egg yolk, and mix well, before adding the coconut flour. Do NOT use an electric mixer here or you will over-beat the eggs and the topping will crack once baked. Use a hand whisk.

    STEP 9
    Bake for 20-22 minutes, or until the center is firm but still jiggles slightly.

    STEP 10
    Remove from the oven and let cool in the pan completely, before covering and placing in the refrigerator for at least 2 hours to overnight.

    STEP 11
    Once ready to serve, use a very sharp knife to cut into squares, sprinkle with extra powdered sweetener, and enjoy.

     
    Photo of a glass cake stand holding several Keto Lemon Bars.
     

    FAQS ABOUT KETO LEMON BARS

     
    Do I have to use fresh lemon juice for these Keto Lemon Bars?
    Yes, the stuff in a bottle doesn't come close to the flavor you will get from using fresh lemon juice.
     
    Do I have to use lemon zest?
    Again I will say yes, the lemon zest adds that little punch of lemon due to the oils in the skin. Just make sure to only zest the yellow part of the lemon rind, not the white flesh below it. That is the pith and can make your Keto Lemon Bars bitter.
     
    How do I store my Keto Lemon Bars?

    Lemon bars should be stored in the refrigerator, in an airtight container. Bars will keep well in the fridge for up to 2 weeks. If you want to freeze them place bars on a cookie sheet in the freezer. Once frozen store them in a ziplock bag in the freezer for up to 6 months. To eat thaw bars in the refrigerator overnight.

     
    Closeup photo of a Keto Lemon Bar on a white marble countertop.
     

    Last thoughts about Keto Lemon Bars

     
    There is not much more to say about these Keto Lemon Bars.
     
    If you love lemon like I do then I know you will love these lemon bars. I kinda feel like lemon is my gateway flavor to Spring and Summer being on the horizon so these bars sure make me a happy camper!
     
    So with just a handful of ingredients, what are you waiting for? Get to the store so you can usher in that warm weather and sunshine.
     
    Make sure to send some my way OK?
     
    Extreme closeup photo of a Keto Lemon Bar on a white marble countertop.
     

    MORE KETO AND LOW CARB LEMON RECIPES

    • Quick Microwave Low-Carb Lemon Curd
    • Lemon Garlic Zucchini Noodles
    • Pan-Roasted Cod with Lemon White Wine Sauce
    • Low-Carb Lemon Chicken Noodle Soup
    • Grilled Artichokes with Lemon Garlic Sauce
    • Lemon Garlic Mashed Cauliflower "Potatoes"

     

    descrition
    A keto lemon bar on a white marble counter.

    Keto Lemon Bars

    These Keto Lemon Bars are a sugar-free and gluten-free version of the classic lemon dessert bars.
    Print Recipe Pin Recipe
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    Prep Time 10 mins
    Cook Time 30 mins
    Course Dessert
    Cuisine American
    Servings 12
    Calories 181 kcal

    Equipment

    • 1 8 x 8 baking dish
    • 1 mixing bowl set
    • 1 hand mixer

    Ingredients
      

    For the shortbread crust

    • 1/2 cup butter melted
    • 1/2 cup Besti Monk Fruit and Allulose powdered sweetener
    • 1 pinch pink salt
    • 1 cup Wholesome Yum Organic Coconut Flour sifted

    For the lemon filling

    • 1/4 cup butter softened
    • 2 teaspoons lemon zest
    • 1/2 cup lemon juice
    • 1/2 cup Besti Monk Fruit and Allulose powdered sweetener
    • 5 large eggs
    • 1 egg yolk
    • 1 1/2 tablespoons Wholesome Yum Organic Coconut Flour

    Instructions
     

    • Preheat the oven to 350 degrees F.
    • Line an 8 x 8 baking dish with parchment paper.
    • In a large mixing bowl, using an electric hand mixer, beat together the butter, powdered sweetener, and pinch of salt until creamy and well combined.
    • Stir in the coconut flour until a dough forms.
    • Transfer the mixture into the lined pan and press into place.
    • Bake the shortbread crust for 10 minutes, or until golden. Remove from the oven and allow to cool for 30 minutes.
    • In a separate mixing bowl, combine the softened butter, lemon zest, lemon juice, and powdered sweetener with an immersion blender or high-speed hand mixer. Once it is shiny and smooth, add your eggs, extra egg yolk, and mix well, before adding the coconut flour. Do NOT use an electric mixer here or you will over-beat the eggs and the topping will crack once baked. Use a hand whisk.
    • Bake for 20-22 minutes, or until the center is firm but still jiggles slightly.
    • Remove from the oven and let cool in the pan completely, before covering and placing in the refrigerator for at least 2 hours to overnight.
    • Once ready to serve, use a very sharp knife to cut into squares, sprinkle with extra powdered sweetener, and enjoy.

    Notes

    Most of my recipes are low-carb (or keto) and gluten-free, but some are not. Please verify that a recipe fits your needs before using it. Recommended and linked products are not guaranteed to be gluten-free. Recipes may contain errors, so please use your common sense when following them.
    Nutritional information is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs will not be included as it has a glycemic index of 0 (meaning it does not spike blood sugar) and it’s not metabolized. Net carbs are the total carbs minus fiber.

    Disclaimer

    Most of my recipes are low-carb (or keto) and gluten-free, but some are not. Please verify that a recipe fits your needs before using it. Recommended and linked products are not guaranteed to be gluten-free. Recipes may contain errors, so please use your common sense when following them. Nutritional information is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs will not be included as it has a glycemic index of 0 (meaning it does not spike blood sugar) and it’s not metabolized. Net carbs are the total carbs minus fiber.

    Nutrition

    Calories: 181kcalCarbohydrates: 6gProtein: 4gFat: 15gSaturated Fat: 9gPolyunsaturated Fat: 0.5gMonounsaturated Fat: 3gTrans Fat: 0.5gCholesterol: 125mgSodium: 140mgPotassium: 16mgFiber: 0.1gSugar: 1gVitamin A: 377IUVitamin C: 4mgCalcium: 6mgIron: 0.1mg
    Keyword american, baking, gluten-free, grain-free, Keto, keto recipes, lemon, Low Carb, Sugar-Free
    Tried this recipe?Let us know how it was!
    Pinterest graphic with image of keto lemon bars stacked on top of each other on it.

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    Welcome! It is so nice to meet you. My name is Bobbi. I am the Mom of 2 great kids, and Nana to 3 amazing littles. I share my home in the beautiful PNW with my husband Kevin, and 2 furbabies, a Pyrador named Sia, and a Boxer/GSD Mix named Hawk..

    More about me

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