3-Layer Key Lime Pie Bars: A Refreshing, Low-Carb Dessert Delight

When it comes to summer desserts, few treats rival the refreshing tang of Key Lime Pie . But for those following a keto or low-carb lifestyle, traditional pie recipes loaded with sugar and graham crackers are off-limits due to their high carb content. Enter 3-Layer Key Lime Pie Bars , a keto-friendly twist on this classic dessert that delivers all the zesty, creamy goodness of Key Lime Pie in a convenient bar form. With layers of a buttery almond flour crust, creamy lime filling, and whipped topping, these bars are light, refreshing, and perfect for satisfying your sweet tooth without the carbs. In this article, we’ll guide you through everything you need to know about making these delightful bars, including tips, variations, and serving suggestions. By the end, you’ll have a foolproof recipe for a dessert that’s as indulgent as it is simple.


Why You’ll Love 3-Layer Key Lime Pie Bars

1. Low-Carb and Keto-Friendly

Made with almond flour, sugar-free sweeteners, and fresh lime juice, these bars are naturally low in carbs and packed with flavor, making them perfect for keto, paleo, and gluten-free diets.

2. Refreshing and Tangy

The vibrant citrus flavor of key limes (or regular limes) paired with a creamy filling makes these bars a refreshing treat, especially on warm days.

3. Quick and Easy

With just three layers and minimal prep time, these bars come together quickly, even for beginner bakers. Plus, they’re made in one pan, which means less cleanup!

4. Customizable

Whether you prefer a thicker crust, extra lime zest, or a dollop of whipped cream on top, this recipe is easy to adapt to your taste preferences.


Ingredients You’ll Need

Here’s what you’ll need to make 3-Layer Key Lime Pie Bars:

For the Crust:

  • 1 ½ cups almond flour
  • ¼ cup powdered erythritol or monk fruit sweetener
  • ¼ teaspoon salt
  • 6 tablespoons unsalted butter, melted
  • Optional: 1 teaspoon lime zest for added flavor

For the Filling:

  • 8 ounces cream cheese, softened
  • ½ cup full-fat canned coconut milk (or heavy cream)
  • ¼ cup lime juice (about 4–6 limes)
  • ¼ cup powdered erythritol or monk fruit sweetener
  • 1 teaspoon vanilla extract
  • Optional: 1 teaspoon lime zest

For the Topping:

  • 1 cup heavy whipping cream
  • 2 tablespoons powdered erythritol or monk fruit sweetener
  • ½ teaspoon vanilla extract
  • Optional: Lime slices or zest for garnish

Step-by-Step Instructions

Step 1: Preheat Your Oven

Preheat your oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper, leaving an overhang on the sides for easy removal.

Step 2: Make the Crust

  1. In a mixing bowl, combine the almond flour, sweetener, salt, and melted butter. Mix until the dough resembles coarse sand.
  2. Press the mixture evenly into the bottom of the prepared pan to form the crust.
  3. Bake for 10–12 minutes, or until lightly golden. Remove from the oven and let it cool while you prepare the filling.

Step 3: Make the Filling

  1. In a large mixing bowl, beat the softened cream cheese with a hand mixer until smooth and creamy.
  2. Add the coconut milk (or heavy cream), lime juice, sweetener, vanilla extract, and lime zest (if using). Beat until fully combined and smooth.
  3. Pour the filling over the cooled crust and spread it evenly with a spatula.

Step 4: Chill

Refrigerate the bars for at least 2–3 hours, or until the filling is set.

Step 5: Make the Whipped Cream Topping

  1. In a mixing bowl, beat the heavy whipping cream, sweetener, and vanilla extract with a hand mixer until stiff peaks form.
  2. Spread the whipped cream evenly over the chilled filling layer.

Step 6: Garnish and Serve

Garnish with lime slices, zest, or additional lime juice drizzle if desired. Slice into squares and serve chilled.


Tips for the Best 3-Layer Key Lime Pie Bars

  1. Use Fresh Lime Juice : Freshly squeezed lime juice provides the best flavor and aroma compared to bottled lime juice.
  2. Don’t Overmix the Crust : Overmixing can make the crust dense. Mix just until the ingredients are combined.
  3. Chill Thoroughly : Ensure the bars are fully chilled before slicing to achieve clean, neat layers.
  4. Experiment with Sweeteners : Adjust the amount of sweetener to your taste, as keto sweeteners vary in sweetness.
  5. Make Ahead : These bars can be made a day in advance and stored in the refrigerator until ready to serve.

Variations to Try

While the classic version is divine, here are some creative twists to try:

  1. Lemon Bars : Substitute lime juice and zest with lemon juice and zest for a citrusy variation.
  2. Coconut Lime Bars : Add shredded unsweetened coconut to the crust or filling for a tropical twist.
  3. Chocolate Drizzle : Melt sugar-free chocolate and drizzle it over the whipped cream topping for added decadence.
  4. Berry Topping : Top the whipped cream layer with fresh raspberries or blueberries for a fruity contrast.
  5. Nut-Free Option : Replace almond flour with sunflower seed flour for a nut-free alternative.

Serving Suggestions

3-Layer Key Lime Pie Bars are versatile enough to serve in a variety of settings:

  • For Dessert : Pair with a cup of coffee or tea for a refreshing after-dinner treat.
  • At Parties : Cut into small squares for bite-sized portions that are perfect for sharing at gatherings or potlucks.
  • For Meal Prep : Store individual portions in airtight containers for quick and easy desserts throughout the week.
  • With Beverages : Serve alongside sparkling water with a splash of lime for a refreshing pairing.

Nutritional Information

Understanding the nutritional content of your meals helps you enjoy them mindfully. Here’s an approximate breakdown per bar (assuming 9 servings):

  • Calories: 180–200
  • Fat: 16g
  • Carbohydrates: 5g (net carbs)
  • Protein: 4g

These numbers may vary slightly depending on the brands of ingredients used. Always check nutrition labels for accuracy.


Frequently Asked Questions (FAQs)

Q: Can I use regular limes instead of key limes? A: Yes! Regular limes work perfectly fine and are easier to find than key limes.

Q: What can I use instead of almond flour? A: Sunflower seed flour or coconut flour works as a substitute for almond flour, though the texture may vary slightly.

Q: Can I freeze these bars? A: Absolutely! Wrap individual bars tightly in plastic wrap and store them in an airtight container in the freezer for up to 3 months. Thaw in the refrigerator before serving.

Q: How do I prevent the crust from being too crumbly? A: Ensure the butter is fully incorporated into the almond flour mixture and press the crust firmly into the pan.

Q: Can I make these bars dairy-free? A: Yes! Use coconut oil instead of butter for the crust and coconut cream instead of heavy cream for the filling and topping.


Conclusion

3-Layer Key Lime Pie Bars are proof that you don’t have to sacrifice flavor or indulgence to enjoy your favorite desserts while sticking to a low-carb or keto lifestyle. With their buttery crust, tangy filling, and light whipped topping, these bars deliver all the refreshing flavors of Key Lime Pie in a convenient, handheld form. Whether you’re serving them for dessert, bringing them to a party, or meal prepping for the week, this recipe guarantees a result that’s as easy to make as it is delicious.

So gather your ingredients, zest those limes, and get ready to create a batch of Key Lime Pie Bars that will leave everyone asking for more. Happy baking—and happy indulging!

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3-Layer Key Lime Pie Bars: A Refreshing, Low-Carb Dessert Delight


  • Author: WAFA LI

Ingredients

🟡 For the Crust:
– 1 package (8.8 oz) Biscoff cookies
– 1/2 cup crushed graham crackers
– 8 tablespoons unsalted butter, melted

🟢 For the Filling:
– 6 egg yolks, room temperature
– 1 can (14 oz) sweetened condensed milk
– 2/3 cup key lime juice (or juice from 4 large limes)
– 2 teaspoons key lime zest
– Pinch of salt

🔵 For the Mascarpone Whip:
– 4 oz mascarpone cheese
– 1/3 cup powdered sugar
– 1 1/4 cups heavy cream
– Lime zest for garnish


Instructions

1. Preheat the Oven: Preheat to 350°F (175°C) and line an 11×7 inch baking pan with parchment paper.
2. Make the Crust: Crush Biscoff cookies and graham crackers in a food processor. Mix in melted butter until sandy. Press into the pan and bake for 10 minutes. Let cool.
3. Prepare the Filling: Zest and juice the limes. Beat egg yolks and lime zest until thick. Add sweetened condensed milk and mix until voluminous. Stir in lime juice and salt.
4. Bake the Filling: Pour over the crust and bake for 10-15 minutes until slightly jiggly. Cool to room temperature, then refrigerate for at least 3 hours.
5. Make the Mascarpone Whip: Beat mascarpone and powdered sugar until creamy. Add heavy cream and beat until stiff peaks form.
6. Assemble and Serve: Spread whipped cream over chilled bars, refrigerate for 30 minutes, garnish with lime zest, and enjoy!

PREP TIME & NUTRITION:
Prep Time: 15 mins, Cook: 15 mins, Chill Time: 3 hrs 30 mins, Total: 4 hrs
Servings: 12, Calories: 486, Net Carbs: 38g, Fats: 35g, Protein: 7g

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