Craving something bright, sweet, and perfectly keto? These Low Carb Lemon Cheesecake Bars are your ideal solution — creamy, tangy, and truly satisfying without the carb overload. They’re the perfect “dessert that keeps my jeans happy.”
Why This Keto Lemon Cheesecake Works
Forget the traditional sugar and graham cracker crust. These bars are crafted with keto-friendly almond flour and a zero-sugar sweetener, delivering big lemon flavor from fresh juice and zest — no artificial aftertaste here. Plus, they’re easy to batch prep, filling, and perfect for snacks throughout the week.
Key Ingredient Highlights
- Almond Flour forms a buttery, crumbly crust that won’t spike your carbs.
- Erythritol or Swerve adds sweetness without the crash or gritty texture.
- Full-fat Cream Cheese ensures richness and that classic cheesecake mouthfeel.
- Real Lemon Juice and Zest provide a bright, fresh zing that’s essential.
- Eggs help set the filling for neat, sliceable bars.
Keto vs. Traditional Lemon Cheesecake Bars
While classic versions use graham crackers and sugar, these bars keep the delicious crumb and creamy filling intact, balanced with fresh lemon’s tart brightness. Not ‘traditional,’ but absolutely keto and irresistibly tasty.
Pro Tips for Perfect Bars
- Use room temperature cream cheese and eggs for a smooth batter.
- Mix gently once eggs are added to avoid cracks.
- Fully cool and chill before slicing.
- Add a pinch of salt to the crust to amplify flavor.
- Only zest the yellow lemon skin, avoiding the bitter white pith.
- Optional: powdered erythritol for silky texture.
Storage and Serving
Store airtight up to 1 week in the fridge or freeze slices individually up to 3 months. These bars are best served cold — no reheating needed. Great for weeknight desserts, brunches, or entertaining, especially paired with coffee or a dollop of lightly sweetened whipped cream and extra lemon zest for a bakery-level touch.
Low Carb Lemon Cheesecake Bars
These Low Carb Lemon Cheesecake Bars feature a buttery almond flour crust and a silky, tangy lemon cheesecake filling sweetened with erythritol, keeping them keto-friendly and satisfying without the carb overload. Fresh lemon juice and zest brighten every bite, while full-fat cream cheese adds rich, classic cheesecake texture. Bake until just set, then chill completely for clean slices and a refreshing, make-ahead dessert that is perfect enjoyed cold straight from the fridge any day of the week.
Servings 16 bars
Calories 210kcal
Equipment
- 8×8 inch baking pan
- Parchment Paper
- Mixing Bowls
- hand mixer or stand mixer
- Rubber spatula
- microplane or zester
- measuring cups and spoons
Ingredients
For the almond flour crust
- 1 1/2 cups fine blanched almond flour
- 1/3 cup granulated erythritol or granular Swerve
- 1/4 teaspoon fine sea salt
- 5 tablespoons unsalted butter melted and slightly cooled
For the lemon cheesecake filling
- 16 ounces full fat cream cheese softened to room temperature
- 2/3 cup granulated erythritol or granular Swerve
- 1/3 cup powdered erythritol for an extra silky texture, optional but recommended
- 3 large eggs at room temperature
- 1/2 cup fresh lemon juice from about 2 to 3 lemons
- 2 tablespoons finely grated lemon zest yellow part only, avoid white pith
- 1/4 cup sour cream full fat, at room temperature
- 1 teaspoon pure vanilla extract
- 1/8 teaspoon fine sea salt
Optional garnish
- 1/2 cup heavy whipping cream whipped to soft peaks
- 1 tablespoon powdered erythritol to sweeten whipped cream
- 1 teaspoon finely grated lemon zest for topping
Instructions
- Preheat the oven to 325°F and line an 8×8 inch baking pan with parchment paper, leaving an overhang on two sides to lift the bars out later.
- In a mixing bowl stir together the almond flour, granulated erythritol, and sea salt for the crust until well combined.
- Pour in the melted butter and mix with a fork until the mixture resembles moist crumbs and holds together when pressed between your fingers.
- Transfer the crust mixture to the prepared pan and press it firmly and evenly into the bottom using your fingertips or the bottom of a measuring cup.
- Bake the crust for 10 to 12 minutes until just lightly golden around the edges, then remove from the oven and let it cool slightly while you prepare the filling.
- Reduce the oven temperature to 300°F to keep the cheesecake filling from overbaking and cracking.
- In a large mixing bowl beat the softened cream cheese with a hand mixer on medium speed until completely smooth and fluffy, scraping down the sides of the bowl as needed.
- Add the granulated erythritol and powdered erythritol to the cream cheese and beat again until the mixture is smooth and slightly lighter in texture.
- Add the sour cream, lemon juice, lemon zest, vanilla extract, and sea salt and mix on low speed just until fully incorporated and silky.
- Add the eggs one at a time, mixing on low speed after each addition just until the yolk disappears, taking care not to overmix once the eggs are added.
- Give the bowl a final stir with a spatula to ensure the filling is evenly mixed, then tap the bowl gently on the counter to release any large air bubbles.
- Pour the lemon cheesecake filling over the partially cooled crust and smooth the top with a spatula so it is level from edge to edge.
- Bake the bars at 300°F for 20 to 25 minutes until the edges are set but the center still has a slight jiggle when you gently shake the pan.
- Turn off the oven, crack the oven door open slightly, and let the pan sit in the warm oven for 15 minutes to finish setting gently and reduce cracking.
- Remove the pan to a wire rack and let the cheesecake bars cool completely to room temperature in the pan.
- Once cooled, cover the pan and refrigerate for at least 2 hours or until thoroughly chilled and firm for clean slicing.
- If using the optional whipped cream garnish whip the heavy cream and powdered erythritol together in a chilled bowl until soft peaks form, then gently fold in the lemon zest.
- Lift the chilled cheesecake slab out of the pan using the parchment overhang, place it on a cutting board, and slice into 16 bars with a sharp knife, wiping the blade between cuts for neat edges.
- Serve the lemon cheesecake bars cold straight from the fridge, optionally topped with a dollop of lemon whipped cream and a sprinkle of extra lemon zest.
- Store any leftover bars covered in the refrigerator for up to 1 week or freeze individual slices tightly wrapped for up to 3 months, thawing in the fridge before serving.
Notes
For the smoothest texture, ensure the cream cheese, sour cream, and eggs are all at room temperature before mixing so they blend without lumps. Mix gently once the eggs are added to avoid incorporating too much air, which can lead to cracks. Only zest the yellow outer skin of the lemons and avoid the bitter white pith to keep the flavor bright and clean. These bars are designed to be enjoyed cold, and the flavor improves after a full overnight chill in the refrigerator. Each bar is keto friendly with approximately 5 grams of net carbs, making them a great option for a light dessert or a satisfying snack alongside coffee or tea.
Nutrition
Calories: 210kcal | Carbohydrates: 4g | Protein: 6g | Fat: 20g | Saturated Fat: 10g | Cholesterol: 90mg | Sodium: 160mg | Fiber: 1g
