These low sugar no bake key lime pie bars are cool, creamy, and packed with fresh citrus flavor in every bite. With a buttery almond crust and silky key lime filling, they deliver the refreshing taste of classic key lime pie without the extra sugar or the need to turn on the oven. They’re light, tangy, and perfect for warm weather desserts, meal prep treats, or easy party bars.
The creamy filling has the perfect balance of sweetness and tart lime flavor, while the chilled texture makes these bars incredibly refreshing. Whether you’re following a low sugar lifestyle or just looking for a simple dessert that feels bakery-worthy, these bars are always a hit.
Why You’ll Love This Recipe
- No baking required
- Low sugar and keto-friendly
- Creamy and refreshing texture
- Easy make-ahead dessert
- Perfect for summer gatherings
- Bright fresh lime flavor
Ingredients
For the Crust
- 2 cups almond flour
- 1/4 cup melted butter
- 2 tablespoons powdered monk fruit sweetener
- 1 teaspoon vanilla extract
- Pinch of salt
For the Key Lime Filling
- 8 ounces cream cheese, softened
- 1/2 cup powdered keto sweetener
- 1/2 cup fresh key lime juice
- 1 tablespoon key lime zest
- 1 teaspoon vanilla extract
- 1 cup heavy whipping cream
Optional Toppings
- Sugar-free whipped cream
- Extra lime zest
- Thin lime slices
Instructions
Step 1: Make the Crust
In a bowl, mix almond flour, melted butter, sweetener, vanilla extract, and salt until combined.
Press the mixture firmly into the bottom of a parchment-lined 8×8-inch baking pan. Place the crust in the refrigerator while preparing the filling.
Step 2: Prepare the Filling
In a large bowl, beat the cream cheese until smooth and creamy. Add powdered sweetener, key lime juice, lime zest, and vanilla extract. Mix until fully combined.
In another bowl, whip the heavy cream until soft peaks form. Gently fold the whipped cream into the lime mixture until smooth and fluffy.
Step 3: Assemble the Bars
Spread the filling evenly over the chilled crust. Smooth the top with a spatula.
Cover and refrigerate for at least 4 hours, or until firm enough to slice cleanly.
Step 4: Slice and Serve
Lift the bars out of the pan using the parchment paper. Slice into squares and top with whipped cream, lime zest, or lime slices before serving.
Tips for the Best Key Lime Bars
- Use fresh lime juice for the brightest flavor.
- Chill overnight for cleaner slices and better texture.
- For extra firmness, freeze the bars for 20 minutes before slicing.
- Wipe the knife clean between cuts for neat squares.
Storage Tips
Store the bars covered in the refrigerator for up to 5 days. They can also be frozen for up to 2 months. Thaw in the refrigerator before serving.
FAQ
Are these bars keto-friendly?
Yes. They are made with almond flour and keto sweeteners to keep carbs and sugar lower than traditional bars.
Can I use regular lime juice?
Yes, but key lime juice gives a more authentic and slightly stronger citrus flavor.
Do these bars need gelatin?
No. The whipped cream and cream cheese help the bars set naturally while chilling.
Can I make them dairy-free?
You can try dairy-free cream cheese and coconut cream, though the texture may vary slightly.