Keto Key Lime Pie - Wholesome Yum - Easy healthy recipes. 10 ingredients or less. (2024)

This cool and creamy keto key lime pie is the perfect treat for a hot day! I’ll show you how to make a sugar-free key lime pie with simple ingredients and just a few minutes of prep time.

If you like the flavor of keto lemon meringue pie, you’ll love this sweet and tart alternative. I also have a no bake version in the Wholesome Yum app.

Is Key Lime Pie Keto?

Most key lime pie recipes are not keto friendly, since they contain refined sugar, conventional sweetened condensed milk, and a traditional graham cracker crust with gluten. However, it’s easy to swap these ingredients to make a recipe for sugar-free key lime pie that tastes just as delicious!

A super smooth low carb key lime pie needs a sweetener that dissolves easily. That’s why I use Besti Powdered Monk Fruit Allulose Blend for this dessert. Since it measures and tastes like sugar, nobody can tell that this pie is keto friendly… and with a fine consistency that dissolves completely, every bite stays creamy. Pair it with a buttery crust using Wholesome Yum Almond Flour, and you’ll never miss conventional key lime pie again!

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Ingredients You’ll Need

This section explains how to choose the best ingredients for sugar-free key lime pie, what each one does in the recipe, and substitution options. For measurements, see the recipe card below.

• Almond Flour Pie Crust – You can also use coconut flour pie crust for a nut-free variation.
• Sugar-Free Sweetened Condensed Milk – Helps make the creamy consistency, and it’s easy to make yourself! You may be able to make a dairy-free version if you need to by using coconut cream or full-fat coconut milk instead of heavy cream.
• Egg Yolks – Help the key lime pie filling “set” and adds to the rich and smooth mouthfeel.
• Besti Powdered Monk Fruit Allulose Blend – This one dissolves the best and tastes the most like sugar, all with 0g net carbs. You can use other powdered sugar substitutes, but many other brands have erythritol in them and have a tendency to crystallize when storing, so the texture may be gritty if not using Besti.
• Key Lime Juice – Get a bottled version like this for convenience, or squeeze your own limes. You can use regular or key limes for this juice.
• Lime Zest – Adds extra lime flavor with minimal extra carbs.
• Sea Salt – Balances the tart and tangy sweetness.
• Optional Garnishes – Thinly sliced fresh limes and sugar-free whipped cream.

How To Make Sugar-Free Key Lime Pie

This section shows how to make keto friendly key lime pie, with step-by-step photos and details about the technique, to help you visualize it. For full instructions, including amounts and temperatures, see the recipe card below.

1. Make condensed milk. Prepare the sugar-free condensed milk (be sure to double the recipe) and set aside to cool.
2. Make the crust. Prepare the almond flour pie crust and set aside to cool.

2. Make filling base. In a medium bowl, use a mixer or whisk to combine condensed milk and egg yolks until smooth.
3. Add lime. Add key lime juice and lime zest, whisking until smooth. Taste the filling and whisk in Besti, if desired, until it reaches your desired sweetness.

3. Pour. Pour filling into the cooled crust. Smooth the top and cover edges with foil or a pie shield.
4. Bake. Bake keto key lime pie for 15 minutes.

See Also

Easy Air Fryer Apple Chips - Recipes From A PantryKeto Coconut Chocolate Cups - Divalicious RecipesBest Keto Blueberry Scones Recipe (Gluten-Free, Low-Carb)42 Family Cookbook Recipes from Grandma

5. Chill. Cool for 30 minutes on the counter, then refrigerate until set.
6. Garnish. Top with lime zest, keto whipped cream, and lime (or key lime) slices.

Storage Instructions

• Store: Keep leftovers covered in the fridge for 1-2 days.
• Freeze: To freeze pie, divide into slices and freeze individually until solid. Then wrap tightly for long term freezer storage for up to 1 month.

More Keto Pie Recipes

Try these cool and summery pies next — all with no sugar whatsoever.

Recipe Card

4.67 from 9 votes☝️ Click stars to rate or click here to leave a review!

Keto Key Lime Pie

This keto key lime pie recipe has a sweet creamy filling and buttery crust, just like the real deal. Nobody can tell it's a sugar-free key lime pie!

Prep: 10 minutes

Cook: 1 hour

Chilling Time: 3 hours

Total: 1 hour 10 minutes

Author: Maya Krampf from WholesomeYum.com

See Also

Coldstone Peppermint Fudge Recipe - Gwen's Nest

Servings: 12 (adjust to scale recipe)

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Recipe Video

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US Customary – Metric

Ingredients

Tap underlined ingredients to see where to get them.

Crust:

• 1recipeAlmond Flour Pie Crust(or Coconut Flour Pie Crust for nut-free)▢

Filling:

• 1doubled recipeSugar-Free Sweetened Condensed Milk(3 cups)▢
• 4largeEgg yolks▢
• 1/4tspSea salt▢
• 1/2cupKey lime juice(or regular lime juice)▢
• 2tspLime zest(finely grated; from regular or key limes)▢
• 1/4cupBesti Powdered Monk Fruit Allulose Blend(to taste, as needed – see step 5)▢

Optional Garnishes:

• Sugar-Free Whipped Cream▢
• Limes(sliced thinly, for garnish)▢

Instructions

Tap on the times in the instructions below to start a kitchen timer while you cook.

1. Make the sugar-free sweetened condensed milk according to the instructions here. Set aside to cool to room temperature.

2. Preheat the oven to 350 degrees F (176 degrees C).

3. Make the keto pie crust according to the instructions here. Set aside to cool. Leave the oven on at 350 degrees F (or preheat again before step 6).

4. Meanwhile, in a medium bowl, whisk together the condensed milk, egg yolks, and salt, until smooth.

5. Whisk in the lime juice and lime zest, until smooth.

6. Taste the filling to see if it’s sweet enough to your liking. If not, whisk in Besti Powdered, until dissolved, to achieve your desired sweetness.

7. Pour the filling mixture into the cooled crust and smooth the top. Cover the edges of the crust with foil or a pie shield.

8. Bake the keto key lime pie for 15 minutes. The filling will still be runny and will not set at this step – this is normal.

9. Remove the pie from the oven. Cool for 30 minutes on the counter, then refrigerate for at least 3-4 hours, until set. Serve cold or at room temperature.

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Related Easy Recipes

• Sugar Free Keto Lemon Curd

• Keto Sugar-Free Pecan Pie

• Keto Pumpkin Pie (Sugar Free)

• Keto Sugar Free Jello Recipe

Recipe Notes

Serving size: 1 slice, or 1/12 entire recipe

Nutrition Facts

Amount per serving. Serving size in recipe notes above.

Calories526

Fat54.5g

Protein8.9g

Total Carbs8g

Net Carbs5g

Fiber3g

Sugar3g

Nutrition facts are provided as a courtesy. Have questions about calculations or why you got a different result? Please see our nutrition policy.

Course:Dessert

Cuisine:American

Keywords:keto key lime pie, sugar-free key lime pie

Calories: 526 kcal

© Copyright Maya Krampf for Wholesome Yum. Please DO NOT SCREENSHOT OR COPY/PASTE recipes to social media or websites. We’d LOVE for you to share a link with photo instead. 🙂

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