Sugar-Free Creamy Lemon Bars
Sugar-Free Creamy Lemon Bars
Silky baked lemon cream on a buttery shortbread crust — sugar-free, make-ahead, and slices clean
These sugar-free creamy lemon bars pair a buttery almond-flour shortbread crust with a silky baked lemon cream filling. Bright, tangy, and deeply satisfying — with none of the sugar.
Each bar delivers 4 g of protein and only 3 g net carbs, and they slice beautifully after a proper chill.
Why you'll love these bars
- 4g protein per bar — a dessert with staying power
- Only 3g net carbs and fully sugar-free
- Buttery shortbread crust, silky lemon filling
- Makes 16 bars — perfect for sharing
- Better made ahead — flavors deepen overnight
- Slices clean with a proper chill
Health notes
- Sugar-free: Powdered sugar-free sweetener — no added sugar.
- Low carb: Just 3g net carbs per bar.
- Gluten-free: Almond-flour crust is naturally gluten-free.
- High protein: Cream cheese and eggs boost the protein.
Key element — chill at least 3 hours before cutting
These bars slice cleanly only when fully set. Cool on the counter, then refrigerate at least 3 hours (overnight is even better) before lifting out and cutting.
Ingredients
Shortbread crust
- 1½ cups almond flour
- ⅓ cup powdered sugar-free sweetener
- 6 Tbsp unsalted butter, melted
- Pinch of salt
Creamy lemon filling
- 8 oz cream cheese, softened
- ½ cup powdered sugar-free sweetener
- ½ cup sour cream
- ¼ cup fresh lemon juice
- 1 Tbsp lemon zest
- 2 large eggs
- 1 tsp vanilla extract
Swaps
- Dairy-free: Use dairy-free cream cheese and coconut yogurt for the sour cream.
- Lime: Swap lime juice and zest for a lime version.
- Coconut crust: Replace ½ cup almond flour with shredded coconut.
- Extra protein: Add 2 Tbsp vanilla protein powder to the filling.
Instructions
| 1 | Prep. Heat the oven to 325°F. Line an 8x8-inch pan with parchment, leaving overhang for easy lifting. |
| 2 | Bake the crust. Stir the almond flour, sweetener, melted butter, and salt; press firmly into the pan. Bake 12 minutes until lightly golden. |
| 3 | Beat the cream cheese. Beat the softened cream cheese with the sweetener until completely smooth, scraping the bowl twice. |
| 4 | Build the filling. Beat in the eggs one at a time, then the sour cream, lemon juice, lemon zest, and vanilla until silky. |
| 5 | Bake. Pour the filling over the warm crust. Bake 20–25 minutes until the edges are set and the center still jiggles slightly. |
| 6 | Chill and cut. Cool on the counter, then refrigerate at least 3 hours. Lift out with the parchment and cut into 16 bars. |
Pro tips
- Room-temperature cream cheese is essential for a lump-free filling.
- Don't overbake — the center should jiggle slightly; it sets as it cools.
- Run a knife under hot water and wipe dry between cuts for bakery-clean slices.
- Zest before juicing — and use fresh lemons, not bottled juice.
- These taste even better the next day once the flavors meld.
Nutrition
| Nutrient | Per bar (16) |
|---|---|
| Calories | 150 |
| Protein | 4g |
| Net carbohydrates | 3g |
| Total carbohydrates | 4g |
| Fiber | 1g |
| Total fat | 13g |
| Sodium | 90mg |
Estimates per bar (16 per pan), based on almond flour, butter, cream cheese, eggs, and sugar-free sweetener.
Variations
Lime bars
Swap lime juice and zest for the lemon for a tangy lime version.
Blueberry swirl
Swirl 2 Tbsp sugar-free blueberry jam through the filling before baking.
Coconut
Sprinkle shredded coconut over the filling before baking for a tropical top.
Extra-tangy
Add 1 tsp citric acid to the filling for a bolder lemon punch.
Storage
| Method | Time | Notes |
|---|---|---|
| Refrigerator | Up to 5 days | Cover tightly; flavors improve by day 2 |
| Freezer | Up to 2 months | Freeze bars on a tray, then bag; thaw in fridge |
| Room temp | Not recommended | Keep chilled for best texture |
FAQ
Test your knowledge
5 quick questions about these lemon bars
1. Protein per bar?
2. Net carbs per bar?
3. Why chill at least 3 hours before cutting?
4. What temperature do the bars bake at?
5. What is the crust made from?
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