If you’re on the keto diet and craving something sweet yet tangy, look no further than this delightful Keto Key Lime Pie. With its zesty lime flavor and creamy texture, this pie is sure to satisfy your dessert cravings without straying from your dietary goals. The crust made from keto cookie crumbs brings together the whole experience, making this pie a perfect treat for any occasion. So, let’s dive into how you can create this mouthwatering dessert that will impress both keto enthusiasts and non-keto eaters alike!
Why It’s Crowd-Pleasing

Keto Key Lime Pie is not just for those following a low-carb lifestyle; it’s a dessert that everyone can enjoy. The combination of the sweet and tangy filling with a buttery crust creates a beautiful balance of flavors. Plus, it’s a no-bake dessert, which means you can whip it up quickly and have more time to enjoy with family and friends. Whether it’s a summer barbecue or a holiday gathering, this pie is bound to be a crowd-pleaser.
What We’re Using
To create this delicious Keto Key Lime Pie, we’ll need the following ingredients:
- 2 3/4 cups keto cookie crumbs (see notes)
- 1 tablespoon allulose
- 6 tablespoons butter, melted
- 1 cup cream cheese, softened
- 1 cup keto condensed milk
- 1/2 cup lime juice (freshly squeezed is best)
- 1 cup heavy cream
- 2 tablespoons sugar-free powdered sugar
- 1 large lime, sliced for garnish
Setup & Equipment
Before we dive into the recipe, let’s gather our equipment:
- Mixing bowls (medium and large)
- Electric mixer or whisk
- 9-inch pie pan
- Measuring cups and spoons
- Rubber spatula
- Citrus juicer (optional, for lime juice)
Mastering Keto Key Lime Pie: How-To

Now that we have everything ready, let’s get started with the step-by-step process of making this delectable Keto Key Lime Pie.
Step 1: Prepare the Crust
In a medium mixing bowl, combine the keto cookie crumbs, allulose, and melted butter. Mix until the crumbs are well-coated and resemble wet sand. Press the mixture firmly into the bottom and sides of the pie pan to form a crust. Place the crust in the refrigerator to set while you prepare the filling.
Step 2: Make the Filling
In a large mixing bowl, beat the softened cream cheese until smooth with an electric mixer. Gradually add in the keto condensed milk and lime juice, mixing until well combined and creamy.
Step 3: Whip the Cream
In a separate bowl, whip the heavy cream until soft peaks form. Gradually add the sugar-free powdered sugar, continuing to whip until stiff peaks form.
Step 4: Combine the Mixtures
Gently fold the whipped cream into the cream cheese mixture using a rubber spatula. Be careful not to deflate the whipped cream, as it will keep the filling light and fluffy.
Step 5: Assemble the Pie
Pour the filling into the chilled crust, smoothing the top with the spatula. Cover the pie with plastic wrap and refrigerate for at least 4 hours or overnight for the best results.
Step 6: Serve and Enjoy
Once set, slice the pie and garnish with lime slices. Serve chilled and enjoy the burst of citrus flavor in every bite!
Smart Substitutions

If you want to customize your Keto Key Lime Pie or use different ingredients, here are some smart substitutions:
- Instead of keto cookie crumbs, you can use crushed almonds or coconut flour for the crust.
- Allulose can be replaced with erythritol or monk fruit sweetener in equal measurements.
- If you don’t have heavy cream, you can use coconut cream for a dairy-free option.
- For a different flavor, try adding a teaspoon of vanilla extract to the filling.
Things That Go Wrong
Even the best of us can run into issues while baking. Here are some common pitfalls and how to avoid them:
- Crust Crumbling: Ensure the butter is evenly distributed throughout the cookie crumbs. If it crumbles too much, add a bit more melted butter.
- Filling Too Runny: Make sure to use freshly squeezed lime juice and properly whip the cream for the right texture.
- Pie Not Setting: Allow enough time for the pie to chill in the refrigerator. Overnight is best for a firm set.
Freezer-Friendly Notes
This Keto Key Lime Pie can be a great make-ahead dessert! If you want to prep it ahead of time, you can freeze the pie before adding any garnishes. Just wrap it tightly in plastic wrap and then aluminum foil to prevent freezer burn. When you’re ready to serve, simply thaw it in the refrigerator for a few hours before slicing and garnishing.
Top Questions & Answers
Can I use fresh lime juice instead of bottled?
Absolutely! Fresh lime juice will enhance the flavor of your Keto Key Lime Pie and give it that authentic taste.
How long can I store the Keto Key Lime Pie?
The pie can be stored in the refrigerator for up to 5 days. Just make sure to cover it well to maintain its freshness.
Is this pie suitable for a dairy-free diet?
While this recipe includes dairy products, you can use substitutes like coconut cream and dairy-free cream cheese to make it dairy-free.
Can I make this pie in advance?
Yes! In fact, making it a day in advance allows the flavors to meld beautifully, and it will set up nicely in the fridge.
Don’t Miss These
If you love this Keto Key Lime Pie, you’ll want to check out these delightful recipes:
Ready, Set, Cook
Now that you have all the details, it’s time to get in the kitchen and whip up this scrumptious Keto Key Lime Pie. With its refreshing flavors and creamy texture, it’s sure to become a favorite dessert in your home. Perfect for warm days or any festive occasion, this pie will impress and delight your guests. Enjoy every bite of this Keto Key Lime Pie, and don’t forget to share your creations with friends and family!

Keto Key Lime Pie
Ingredients
For the Crust:
- 2 3/4 cups keto cookie crumbs (see notes)
- 1 tablespoon allulose
- 6 tablespoons butter (melted)
For the Filling:
- 1 cup cream cheese (softened)
- 1 cup keto condensed milk
- 1/2 cup lime juice (freshly squeezed is best)
- 1 cup heavy cream
- 2 tablespoons sugar-free powdered sugar
- 1 large lime (sliced for garnish)
Instructions
Instructions:
- In a medium mixing bowl, combine the keto cookie crumbs, allulose, and melted butter. Mix until well-coated and press into the pie pan to form a crust. Refrigerate to set.
- In a large mixing bowl, beat the softened cream cheese until smooth. Gradually add in the keto condensed milk and lime juice, mixing until creamy.
- In a separate bowl, whip the heavy cream until soft peaks form. Gradually add the sugar-free powdered sugar and continue whipping until stiff peaks form.
- Gently fold the whipped cream into the cream cheese mixture using a rubber spatula.
- Pour the filling into the chilled crust, smoothing the top. Cover with plastic wrap and refrigerate for at least 4 hours or overnight.
- Once set, slice the pie and garnish with lime slices. Serve chilled and enjoy!
Equipment
- Mixing bowls (medium and large)
- Electric Mixer or Whisk
- 9-inch pie pan
- Measuring cups and spoons
- Rubber spatula
- Citrus juicer (optional)
Notes
- Use freshly squeezed lime juice for the best flavor.
- Store leftovers in the refrigerator for up to 5 days.
- Freeze the pie before garnishing for make-ahead convenience.
