Lemon Meringue Pie

The beloved classic lemon meringue pie gets a low carb, grain-free makeover. The lemon filling is both tart and sweet, and the meringue is crisp on the outside, tender in the middle. 

I sincerely love making over the classics to be low carb and gluten-free. The funny part is that many of these classic dishes and desserts are not things I would have bothered with back in my sugar and flour days. Some of them I simply wasn’t interested in and some of them were just a little too daunting. For others, I would have had to follow the recipe to the letter and goodness knows how I hate doing that. I can hardly make my own recipes the same way twice. But now the challenge of recreating the classics in a healthy format I can enjoy holds great appeal. Can I take an iconic dish, something that stands out in people’s minds as the food or dessert they remember from childhood, that their grandmother made every time they came over, and can I remake it without sugar or flour or grains? Can I make it more than simply palatable, more than a mere approximation of the classic they love so much? Can I not only make it, but make it really, REALLY good?

Yep, I sure can. At least in this case, I believe I conquered that challenge and conquered it admirably. Now if only I could conquer crusty Italian or French bread. Then I would be the master of the low carb universe.

Lemon meringue is honestly not one that was very significant in my childhood. Ever the chocoholic, I would forego the citrus-based desserts in favour of something darker, creamier and denser. I know I had lemon meringue pie on a number of occasions, and it was even pretty good a few times. Other times, it was an overly-sweet, soggy mess. But such is the way with any classic dessert, there are good ones and there are awful ones.

Since I already have a low carb pastry recipe that I love, my challenge with this classic lay in both the filling and in the meringue. Lemon meringue fillings are made with plenty of cornstarch to help them set properly and we know that isn’t a gonna fly for low carb. And meringue without sugar can be tricky, as it can either be overly hard and crunchy, or it can lack structure and deflate during baking. I wanted the filling to be slightly gooey but not liquid, so I decided to tackle that in two ways. First, with xanthan gum to help thicken it a little, and secondly, with a little gelatin to help it set properly. I was more worried about the meringue, thinking it might disintegrate when I tried to spread it over the warm filling. But it held up nicely and even better, it baked to that perfect soft crispness. It was crisp on the very outside but sweet and tender on the inside, and I think it was the mix of both granulated and powdered sweetener that helped.

One word to the wise: be patient. Let it chill the full 3 hours. Don’t do as I did and cut in too soon or the un-set lemon filling starts oozing out everywhere. Patience is a virtue that I don’t have enough of!

Low Carb Lemon Meringue Pie

The beloved classic lemon meringue pie gets a low carb, grain-free makeover. The lemon filling is both tart and sweet, and the meringue is crisp on the outside, tender in the middle.

4.91 from 10 votes

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Course: Dessert

Cuisine: Dessert

Prep Time: 25 minutes

Cook Time: 50 minutes

Chill Time: 3 hours

Total Time: 4 hours 15 minutes

Servings: 1 pie

Calories: 218kcal

Ingredients

Pastry Crust:

• 1 ¼ cup almond flour
• 2 tablespoon coconut flour
• 2 tablespoon arrowroot starch OR 2 tablespoon oat fiber for THM
• 1 tablespoon granulated Swerve Sweetener
• 1 teaspoon xanthan gum
• ¼ teaspoon salt
• 5 tablespoon butter chilled and cut into small pieces
• 2-4 tablespoon ice water

Filling:

• 1 cup plus 2 tablespoon water divided
• 1 cup granulated Swerve Sweetener
• 2 teaspoon lemon zest
• ¼ teaspoon salt
• 4 large egg yolks
• ⅓ cup lemon juice
• 3 tablespoon butter
• ½ teaspoon xanthan gum
• 1 tablespoon grassfed gelatin (can use 1 envelope Knox gelatin)

Meringue Topping:

• 4 large egg whites at room temperature
• ¼ teaspoon cream of tartar
• Pinch salt
• ¼ cup powdered Swerve Sweetener
• ¼ cup granulated Swerve Sweetener
• ½ teaspoon vanilla extract

Instructions

Crust:

• Preheat oven to 325F.
• Combine almond flour, coconut flour, arrowroot starch, sweetener, xanthan gum and salt in the bowl of a food processor. Pulse to combine.
• Sprinkle surface with butter pieces and pulse until mixture resembles coarse crumbs.
• With processor running on low, add ice water, one tablespoon at time until dough begins to clump together.
• Place a large piece of parchment on work surface and dust liberally with additional almond flour. Turn out dough and pat into a circle. Sprinkle with more almond flour and cover with another large piece of parchment.
• Roll out carefully into an 11-inch circle. Remove top layer of parchment. Place a 9-inch pie pan upside down on crust and then carefully flip both over so crust is lying in the pie pan. Remove parchment. (Alternatively, you can skip rolling out the pastry and simply press the crust into the bottom and up the sides of the pan).
• You may get some cracking and tears. Simply use small pieces of pastry from the overhang to patch them up. Crimp the edges of the crust and prick all over with a fork.
• Bake crust 12 minutes, then remove and let cool.

Lemon Filling:

• In a medium saucepan over medium heat, combine 1 cup of the water, sweetener, lemon zest and salt. Bring to just a boil, whisking frequently, until sweetener dissolves.
• In a medium bowl, whisk egg yolks until smooth. Slowly add about ½ cup of the water to the egg yolks, whisking constantly. Then gradually whisk the egg yolks back into the pan and lower the heat to low. Cook for 1 minute more, stirring continuously.
• Stir in lemon juice and butter and whisk until smooth. Sprinkle surface with xanthan gum and whisk vigorously to combine.
• In a small bowl, stir together the remaining two tablespoons of water and the gelatin. Let sit 2 minutes until gelled, then stir into hot lemon mixture, whisking until well combined. Cover and set aside while making the meringue.

Meringue Topping:

• In a large bowl, beat egg whites with cream of tartar and salt until frothy. With beaters going, slowly add sweeteners and vanilla extract and continue to beat until stiff peaks form.

To assemble:

• Preheat oven to 300F.
• Pour warm filling into crust. Dollop with meringue and spread right to the edges so that the meringue meets the crust. Swirl the top with the back of a spoon.
• Bake 20 minutes or until meringue topping is golden and just barely firm to the touch. Remove and let pie cool 20 minutes, then refrigerate at least 3 hours to set.

Notes

Serves 10. Each serving has 7.22 g of carbs and 2.12 g of fiber. Total NET CARBS = 5.1 g.

Food energy: 218kcal
Total fat: 17.51g
Calories from fat: 157
Cholesterol: 98mg
Carbohydrate: 7.22g
Total dietary fiber: 2.12g
Protein: 6.45g
Sodium: 174mg

Nutrition Facts

Low Carb Lemon Meringue Pie

Amount Per Serving (1 slice)

Calories 218 Calories from Fat 158

% Daily Value*

Fat 17.51g27%

Cholesterol 98mg33%

Sodium 174mg7%

Carbohydrates 7.22g2%

Fiber 2.12g8%

Protein 6.45g13%

* Percent Daily Values are based on a 2000 calorie diet.