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Best Easy Sugar Free Low Carb Keto Coconut Lime Bars

Written By Unknown on Saturday, 14 June 2025 | 10:27


Keto Sugar Free Coconut Lime Bars have a buttery coconut flour crust, and a delicious, tart coconut lime filling! Just 4 total carbs per serving or 2 g net carb count! Perfect for those on a keto diet or anyone looking for a sugar-free sweet treat low in carbs that won’t spike blood sugar when you want to curb your sweet tooth!

Keto Sugar Free Coconut Lime Bars have a buttery coconut flour crust, and a delicious, tart coconut lime filling!

Keto Coconut Lime Bars Recipe

Imagine a dessert that tastes like a tropical escape, bright with citrus and rich with coconut, yet fits perfectly into your low-carb lifestyle.

These sugar-free coconut lime bars are exactly that – a little square of sunshine that won’t derail your healthy eating goals. Forget those overly sweet, guilt-inducing treats; it’s time for something both delicious and mindful.

Finding truly satisfying low-carb desserts can be a challenge. Often, they sacrifice flavor or texture in the quest for fewer carbs and no sugar. But what if you could have a vibrant, zesty bar with a delightful crust and a creamy, tangy filling?

This recipe delivers on all fronts, proving that you don’t need sugar to create something truly special. It’s about smart ingredient swaps and balancing flavors to achieve that perfect sweet-tart harmony.

lime coconut bars1 (1 of 1)

Keto Key Lime Bars

Every great bar starts with a solid base. For these coconut lime bars, we’re using a blend of coconut flour and either sesame or almond flour to create a tender, flavorful shortbread crust that complements the filling without being overly dense.

Combine the dry ingredients – the flours, your chosen sweetener, and a touch of sea salt. Then, cut in the coconut oil until the mixture is crumbly.

This creates that perfect shortbread-like texture. Press this firmly into your prepared baking dish; parchment paper is your friend here for easy removal later. A quick bake in a preheated oven sets the stage for the luscious filling.

While the crust bakes, whip up the star of the show: the vibrant lime filling. This is where the tropical magic truly happens.

You’ll whisk together eggs, fresh lime juice, and plenty of lime zest for that essential bright flavor. Add your sweetener of choice and a hint of coconut stevia to enhance that tropical note.

Once the crust is ready, pour this smooth, zesty mixture over the warm base. A sprinkle of unsweetened coconut flakes on top adds another layer of texture and flavor.

Keto Sugar Free Coconut Lime Bars have a buttery coconut flour crust, and a delicious, tart coconut lime filling!

Sugar Free Keto Lime Bars

You can change this fantastic tropical dessert into keto lemon bars by simply swapping the fresh limes and using lemon juice and zest instead. 

Simple Ingredients

coconut flour

sesame flour or almond

Swerve confectioners sweetener 

sea salt

coconut oil room temperature or melted butter

Large eggs

Key Lime juice or lemon juice

Lime zest or lemon zest

Coconut stevia

Unsweetened shredded coconut flakes

keto lime coconut bars3 (1 of 1)

Low Carb Sweetener Options

If you don’t have coconut stevia or prefer to use another low carb sweetener, no problem. Use my Sweetener Guide and Conversion Chart to help you decide how much of another sweetener to use to replace stevia. 

I prefer to not use any sugar alcohols as I find they tend to crystalize in the fridge. 

These days I’m enjoying using a combination sweetener that combines Monk Fruit and Allulose and I find it perfect in the amount of sweetness for keto baked desserts. 

Keto Sugar Free Coconut Lime Bars have a buttery coconut flour crust, and a delicious, tart coconut lime filling!

How to Store Keto Coconut Lime Bars

Allowing the bars to cool properly is crucial for them to set completely. Once cooled, lift them out using the parchment paper and slice into squares. These bars are best kept refrigerated, perfect for a cool, refreshing treat any time.

Once cooled, and sliced into servings you can place each in a cupcake liner or use parchment paper and layer into an airtight container to place in the fridge. Best stored in the fridge for up to 5 days. You can also freeze for up to one month.

Making recipes like this one might bring you a little piece of the tropics in your mind.  In just one bite of these sweet and tart bars you will be transported to tropical place.

It’s a little like a shortbread cookie crust on the bottom with a soft top layer.

A match made in heaven.

That’s all we want on a low carb diet isn’t it?

More Low Carb Keto Delicious Desserts

Key Lime Pie Bars

Starbucks Copycat Lime Refresher

Coconut Lime Cheesecake

Key Lime Pie Recipe

Sugar Free Low Carb Coconut Lime Bars

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Sugar Free Coconut Lime Bars

Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings 16 bars
Calories 86kcal
Author Brenda Bennett | Sugar Free Mom

Ingredients

Crust Ingredients

Key Lime Filling

  • 4 eggs
  • 1/2 cup lime juice from fresh key limes or regular limes
  • 1 tablespoon lime zest
  • 1/2 teaspoon coconut stevia
  • 1/4 cup unsweetened coconut flakes

Instructions

  • Preheat oven to 350 degrees.
  • Line an 8 by 8 baking dish with parchment paper.
  • Whisk the coconut flour, sesame flour, 1/4 cup sweetener together and salt in a large bowl.
  • Cut the coconut oil into the dry ingredients with two butter knifes or use food processor and pulse until combined.
  • Press this mixture onto the parchment paper in an even layer by pressing down as evenly as you can with your hand or the flat bottom of a cup.
  • Bake for 10 minutes until golden brown.
  • While the crust is cooking, in a medium bowl, beat the eggs, lime juice, zest, remaining 1 cup sweetener and coconut stevia.
  • Once the crust is done, remove from oven and pour this egg mixture onto the buttery crust.
  • Sprinkle coconut flakes evenly over the top and bake for 12-15 minutes or until the center is set.
  • Allow to cool for 10 minutes then remove by lifting the ends of the parchment paper and place onto a cutting board.
  • Slice into bars and you can enjoy immediately or give them some chill time in the fridge before serving if you prefer. 
  • Best if kept refrigerated.

Video

Notes

This recipe was first published in April 2015 and updated with video in April 2019.
2 grams of net carbs per one bar. This recipe makes 16 bars. 

Nutrition

Serving: 1bar | Calories: 86kcal | Carbohydrates: 4g | Protein: 3g | Fat: 6g | Saturated Fat: 4g | Cholesterol: 40mg | Sodium: 63mg | Potassium: 31mg | Fiber: 2g | Vitamin A: 65IU | Vitamin C: 2.4mg | Calcium: 7mg | Iron: 0.2mg

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