Sugar Free Lemon Meringue Pie

Is Lemon Meringue Pie Keto?

No, traditional lemon meringue pies are not keto friendly, as they are made with lots of flour and sugar! So, I made this keto lemon pie without sugar, so that we can enjoy it, too.

Ingredients & Substitutions

Here I explain the best ingredients for my keto-friendly lemon meringue pie recipe, what each one does, and substitution options. For measurements, see the recipe card.

Pie Crust:

• Almond Flour Pie Crust – Follow the instructions for the sweet crust. If you need a nut-free option, use coconut flour pie crust instead.

Lemon Filling:

The filling in this low carb lemon meringue pie is a modified version of my keto lemon curd recipe, but made thicker to be suitable for a pie filling:

• Egg Yolks – A crucial component for lemon curd, they make it thick and creamy. Use large eggs, and save the whites for the meringue (below).
• Unflavored Gelatin Powder – Gelatin is a natural thickener.
• Water – Blooms the gelatin.
• Xanthan Gum – Another component that helps thicken the filling.
• Lemons – You’ll need both lemon juice and lemon zest. However, you’ll need zest from about 3 lemons and juice from about 4-6 lemons, so you could just get 3 and supplement the remaining juice with the bottled kind for convenience if you like.
• Besti Powdered Monk Fruit Allulose Blend – Like my sugar-free lemon curd, I only recommend Besti here because unlike other sugar alternatives (including erythritol and other brands of monk fruit sweetener), Besti dissolves completely and won’t crystallize. You can try other powdered sweeteners (check the sweeteners conversion chart), but most of them will crystallize and yield a gritty result.
• Sea Salt – Balances the sweetness.
• Butter – Adds flavor and also helps thicken. Make sure it’s unsalted.
• Keto Lemon Curd – The lemon layer of this keto meringue pie is both sweet and tart in the best way, and includes egg yolks, gelatin powder, xanthan gum, lemon juice and zest, butter, and sweetener.

Meringue:

• Egg whites – Save the egg whites from the lemon curd above, which utilizes the egg yolks.
• Besti Powdered Monk Fruit Allulose Blend – The same sweetener used in the filling above. This is my top choice for the same reasons as above.

Free Printable: Low Carb & Keto Food List

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How To Make Keto Lemon Meringue Pie

I have step-by-step photos here to help you visualize the recipe. For full instructions with amounts and temperatures, see the recipe card.

1. Make crust. Follow the instructions for either almond flour pie crust or coconut flour pie crust. Bake the crust, and you can make the lemon curd layer in the meantime.
2. Whisk egg yolks. Separate the eggs (you’ll need the yolks for the filling and the whites for the meringue.) Whisk the yolks in a small bowl and set aside.
3. Bloom gelatin. In a separate bowl, whisk water, gelatin, and xanthan gum together and set aside.

3. Simmer. Combine lemon juice, zest, Besti, salt, and egg yolks to a saucepan and heat to to a gentle boil.
4. Add gelatin. Whisk in the gelatin mixture, stirring constantly for 2-3 minutes to incorporate.
5. Add butter. Add butter and stir until melted. Remove from heat.

6. Pour and chill. Pour the lemon custard filling into crust. Cool at room temperature for an hour, then chill for at least 5-6 hours, or preferably overnight.
7. Make meringue. Beat egg whites with an electric mixer or stand mixer until stiff peaks form. Add in Besti and continue mixing on high speed until it’s glossy and smooth.
8. Top. Dollop the meringue over the lemon filling with a spoon. Smooth over the top, making swirls with back of the spoon.
9. Broil. Place the keto lemon meringue pie under the broiler, until meringue is golden brown (or use a culinary torch).
10. Chill. Cool completely and refrigerate for at least 4 hours before serving.

Storage Instructions

Keep keto lemon meringue pie in the refrigerator for 2-3 days. Freezing the pie is not recommended, as the freezing and thawing process will change meringue texture.

More Keto Pie Recipes

If you like this sugar-free lemon meringue pie recipe, you might also like these other keto pie recipes:

Keto Apple Pie

Sugar-Free Pecan Pie

Keto Key Lime Pie

Keto Coconut Cream Pie

My Tools For This Recipe

• Pie Pan – This one is the perfect size for this recipe.
• Hand Mixer – Easily whip up the meringue layer with a hand mixer. You can also use a stand mixer instead if you prefer.
• Kitchen Torch – Optional, but this is the best way to get perfectly browned edges on the meringue.