Low Carb Lemon Bars

Low Carb Lemon Bars Bright, Tangy, and Perfectly Keto & Diabetic-Friendly

These Low Carb Lemon Bars are everything you love about classic lemon bars — a buttery shortbread crust, luscious tangy lemon filling, and a sweet-tart glaze on top — but with a fraction of the carbs. They’re bright, refreshing, and incredibly satisfying without the blood sugar spike.

Why You’ll Love This Recipe

• Buttery crust with a creamy, zesty filling
• Thick sugar-free lemon glaze on top
• Only 3–4g net carbs per bar
• Great for spring, summer, or anytime you need a citrusy treat
• Make-ahead and freezer-friendly

Ingredients (makes 16 bars)

Crust:

• 2 cups (200g) almond flour
• ⅓ cup powdered erythritol or allulose
• ½ cup (113g) cold butter, cubed
• 1 tsp vanilla extract
• Pinch of salt

Lemon Filling:

• 4 large eggs
• ¾ cup powdered erythritol or allulose
• ½ cup fresh lemon juice (about 3–4 lemons)
• 1 tbsp lemon zest
• ¼ cup heavy cream or coconut cream
• 2 tbsp coconut flour (or 1 tsp xanthan gum) for thickening

Glaze:

• ½ cup powdered erythritol
• 2–3 tbsp heavy cream or lemon juice
• ½ tsp vanilla extract
• Pinch of salt

Instructions

1. Preheat oven to 350°F (175°C). Line an 8×8-inch or 9×9-inch pan with parchment paper.
2. Make the crust: Mix almond flour, sweetener, salt, and vanilla. Cut in cold butter until crumbly. Press firmly into the bottom of the pan. Bake for 12–15 minutes until lightly golden.
3. Make the filling: Whisk eggs, sweetener, lemon juice, zest, and cream until smooth. Stir in coconut flour (or xanthan gum). Pour over the warm crust.
4. Bake for 18–25 minutes until the center is just set (it will firm up as it cools). Cool completely.
5. Glaze: Whisk powdered erythritol with heavy cream (or lemon juice) and vanilla until smooth and pourable. Spread over cooled bars.
6. Refrigerate for at least 2 hours before cutting into 16 squares.

Storage Tips

Store in an airtight container in the refrigerator for up to 7 days. These bars also freeze well — wrap individually and freeze for up to 2 months. Thaw in the fridge overnight.

Nutritional Information (per bar, based on 16 bars)

• Calories: ~145
• Fat: 13g
• Total Carbs: ~5g
• Fiber: ~2g
• Net Carbs: ~3g
• Protein: 4g

Macros are approximate and depend on exact brands and sweetener used. Always test your personal blood sugar response.