Keto Key Lime Pie Recipe
If you’re searching for a refreshing and tangy dessert that won’t derail your ketogenic lifestyle, look no further. This Keto Key Lime Pie Recipe is a delightful twist on the classic dessert, bringing together the zesty flavors of fresh limes with a low-carb, gluten-free crust. Perfect for summer gatherings, family celebrations, or simply a sweet treat after dinner, this pie is bound to impress your friends and family while keeping your carb count in check.
Why This Recipe Belongs in Your Rotation

This Keto Key Lime Pie is not only delicious, but it also checks all the boxes for a healthy dessert option. With a crust made from almond flour, it provides a satisfying crunch without the carbs associated with traditional pie crusts. The creamy filling is rich in flavor and contains no added sugars, thanks to the use of sugar-free condensed milk and a powdered sweetener. Plus, it’s incredibly easy to make, requiring minimal time and effort. Once you try this recipe, you’ll want to add it to your regular dessert rotation.
What’s in the Bowl
To create this luscious pie, you’ll need the following ingredients:
- 2 cups almond flour (200g)
- 2 teaspoons salt
- 1 teaspoon cinnamon
- 4 tablespoons powdered sweetener
- ½ cup butter (80g), melted
- 1 cup cream cheese (300g), room temperature
- ¾ cup heavy cream / double cream (180g)
- 1 cup sugar-free condensed milk (250g)
- ½ cup fresh lime juice (120ml, from 3-4 regular limes)
- 1 sachet gelatin (12g, or 2 teaspoons)
- ½ cup heavy cream (80g)
- 1 tablespoon powdered sweetener
- Lime slices, for garnish
- Grated zest of 1 lime
Tools of the Trade
Before you start baking, make sure you have the following tools handy:
- 9-inch pie dish – for your beautifully baked pie.
- Mixing bowls – to combine your ingredients.
- Electric mixer – for a smooth filling.
- Measuring cups and spoons – for precise ingredient measurements.
- Whisk – to blend the ingredients smoothly.
- Rubber spatula – for scraping down the sides of the bowl.
Keto Key Lime Pie Recipe in Steps

Step 1: Prepare the Crust
In a mixing bowl, combine the almond flour, salt, cinnamon, and powdered sweetener. Next, pour in the melted butter and mix until a dough forms. Press this mixture into the bottom and up the sides of a 9-inch pie dish. Bake the crust in a preheated oven at 350°F (175°C) for about 10-12 minutes, or until lightly golden. Allow it to cool completely.
Step 2: Make the Filling
In another mixing bowl, beat the cream cheese until smooth. Gradually add the sugar-free condensed milk, heavy cream, and fresh lime juice while continuing to mix. Sprinkle the gelatin over 2 tablespoons of water and let it sit for a few minutes until it becomes gelatinous. Then, warm it slightly to dissolve and add it to the filling mixture, blending until well combined.
Step 3: Whip the Cream
In a separate bowl, whip the remaining heavy cream and the tablespoon of powdered sweetener until soft peaks form. Gently fold this whipped cream into the lime filling mixture, being careful not to deflate the cream.
Step 4: Assemble the Pie
Pour the filling into the cooled crust, smoothing the top with a spatula. Refrigerate the pie for at least 4 hours, or until set.
Step 5: Serve and Enjoy
Once set, slice your Keto Key Lime Pie Recipe and garnish with lime slices and grated lime zest before serving. Enjoy this creamy, tangy treat guilt-free!
Allergy-Friendly Substitutes

If you have specific dietary needs or allergies, consider these substitutes:
- For dairy-free: Use vegan cream cheese and coconut cream instead of heavy cream.
- For nut allergies: Substitute almond flour with sunflower seed flour.
- For egg-free: This recipe is naturally egg-free, making it suitable for those avoiding eggs.
Method to the Madness
Creating this pie is straightforward. The crust is a breeze to assemble with just a few ingredients, and the filling comes together quickly with a hand mixer. The key to success lies in allowing enough time for the pie to chill, so its flavors meld beautifully and the texture sets perfectly. This dessert is not only a treat for the taste buds but also a feast for the eyes with its vibrant lime color and fresh garnishes.
Best Ways to Store
To keep your Keto Key Lime Pie fresh, follow these storage tips:
- Refrigerate: Store the pie in an airtight container in the refrigerator for up to one week.
- Freeze: For longer storage, you can freeze slices of the pie. Wrap them tightly in plastic wrap and then place them in a freezer-safe container. They can last for up to three months.
- Thawing: To enjoy frozen pie, simply thaw it in the refrigerator overnight before serving.
FAQ
Can I use regular lime juice instead of fresh lime juice?
While fresh lime juice is highly recommended for its vibrant flavor, you can use store-bought lime juice in a pinch. However, the taste may not be as robust.
Can I make this pie ahead of time?
Absolutely! This pie is perfect for making ahead of time. Just ensure it sets properly in the refrigerator for at least 4 hours or overnight for the best results.
What can I use instead of gelatin?
If you’re looking for a vegetarian alternative, consider using agar-agar as a substitute for gelatin. Follow package instructions for equivalent measurements.
How do I know when the pie is set?
The pie is set when the filling is firm to the touch and has a slight jiggle. It should not be liquidy in the center.
More from the Kitchen
If you enjoyed this recipe, check out these additional treats:
- Key Lime Shortbread Bars Recipe – A delightful alternative to pie.
- Coconut Lime Waffles Recipe – Perfect for breakfast or brunch.
- Caramel Cheesecake Bites – A rich and satisfying dessert.
The Takeaway
This Keto Key Lime Pie Recipe is a delicious and refreshing option for anyone on a low-carb diet. With its creamy filling and crunchy almond flour crust, it’s sure to satisfy your sweet tooth without the guilt. Perfect for any occasion, this pie is bound to become a favorite in your dessert repertoire. Whether you’re hosting a summer picnic or simply indulging on a quiet evening at home, this keto-friendly treat is the perfect way to enjoy the flavors of key lime without the extra carbs. Enjoy every bite!

Keto Key Lime Pie Recipe
Ingredients
Equipment
Method
- In a mixing bowl, combine the almond flour, salt, cinnamon, and powdered sweetener. Next, pour in the melted butter and mix until a dough forms. Press this mixture into the bottom and up the sides of a 9-inch pie dish. Bake the crust in a preheated oven at 350°F (175°C) for about 10-12 minutes, or until lightly golden. Allow it to cool completely.
- In another mixing bowl, beat the cream cheese until smooth. Gradually add the sugar-free condensed milk, heavy cream, and fresh lime juice while continuing to mix. Sprinkle the gelatin over 2 tablespoons of water and let it sit for a few minutes until it becomes gelatinous. Then, warm it slightly to dissolve and add it to the filling mixture, blending until well combined.
- In a separate bowl, whip the remaining heavy cream and the tablespoon of powdered sweetener until soft peaks form. Gently fold this whipped cream into the lime filling mixture, being careful not to deflate the cream.
- Pour the filling into the cooled crust, smoothing the top with a spatula. Refrigerate the pie for at least 4 hours, or until set.
- Once set, slice your Keto Key Lime Pie and garnish with lime slices and grated lime zest before serving. Enjoy this creamy, tangy treat guilt-free!
Notes
- For dairy-free, use vegan cream cheese and coconut cream instead of heavy cream.
- If you have nut allergies, substitute almond flour with sunflower seed flour.
- This recipe is naturally egg-free, making it suitable for those avoiding eggs.
