This Sugar-Free Lemon Blueberry Cheesecake is a rich, creamy dessert with a buttery almond crust, bright fresh lemon flavor, and a glossy blueberry topping. It is refreshing, elegant, and perfect for celebrations, holidays, or make-ahead dinners.

Made with almond flour, cream cheese, sour cream, and fresh or frozen blueberries, this cheesecake delivers bold citrus and berry flavors without regular sugar. A water bath ensures gentle, even baking for a smooth, crack-free surface.

It is delicious chilled, with optional toppings like sugar-free whipped cream, fresh blueberries, thin lemon slices, or extra lemon zest for a beautiful, restaurant-quality finish.

Why You’ll Love This Lemon Blueberry Cheesecake

One of the best things about this recipe is how creamy and rich the filling is. The combination of cream cheese and sour cream creates a velvety texture that feels indulgent yet light.

The flavor is bright and refreshing. Fresh lemon juice and zest provide vibrant citrus notes, while the blueberry topping adds sweet, juicy bursts in every bite.

It is also very versatile. You can serve it as an elegant dessert for special occasions, a make-ahead treat for busy weeks, or a light finish to any meal.

What Makes This Cheesecake Sugar-Free?

This recipe uses granulated and powdered sugar-free sweeteners instead of regular sugar. Allulose, monk fruit, erythritol blends, or other baking-friendly sugar substitutes can work well.

Almond flour and chopped nuts replace regular wheat flour in the crust, keeping it lower in carbs. Fresh blueberries add natural sweetness without spiking blood sugar.

The result is a cheesecake that tastes like a classic lemon blueberry dessert but fits better into sugar-free and lower-carb eating plans.

Ingredients You Need

This cheesecake has three main components: a buttery almond crust, a smooth lemon cheesecake filling, and a glossy blueberry topping.

Almond Crust (Sugar-Free)

1 1/2 cups almond flour
1/4 cup finely chopped pecans or walnuts
3 tbsp butter, melted
2 tbsp granulated sugar-free sweetener
Pinch of salt

Lemon Cheesecake Filling (Sugar-Free)

24 oz cream cheese, softened
3/4 cup powdered sugar-free sweetener
3 large eggs, room temperature
1/2 cup sour cream
1/4 cup fresh lemon juice
1 tbsp fresh lemon zest
1 tsp vanilla extract
1 tbsp cornstarch

Blueberry Topping (Sugar-Free)

2 cups fresh or frozen blueberries
1/4 cup water
3 tbsp granulated sugar-free sweetener
1 tbsp fresh lemon juice
1 tbsp cornstarch
2 tbsp cold water

Optional Topping

Sugar-free whipped cream
Fresh blueberries
Thin lemon slices
Extra lemon zest

The crust is buttery and nutty, the filling is creamy and tangy, and the topping is sweet, bright, and full of blueberries.

How to Make Sugar-Free Lemon Blueberry Cheesecake

This cheesecake is baked in a water bath for a smooth, creamy texture, then chilled and topped with a glossy blueberry sauce.

Prepare the Pan

Preheat the oven to 325°F (165°C).

Line the bottom of a 9-inch springform pan with parchment paper.

Lightly grease the sides of the pan.

Make the Almond Crust

Combine almond flour, chopped nuts, sugar-free sweetener, and salt in a bowl.

Add melted butter and stir until evenly moistened.

Press firmly into the bottom of the springform pan. Use the bottom of a measuring cup to compact it evenly.

Bake for 8 to 10 minutes, until lightly golden.

Remove from the oven and allow the crust to cool slightly.

Make the Lemon Cheesecake Filling

Beat the softened cream cheese and powdered sugar-free sweetener on low speed until completely smooth.

Add sour cream, lemon juice, lemon zest, vanilla extract, and cornstarch.

Mix until fully combined.

Add eggs one at a time, mixing on low speed just until each egg is incorporated. Do not overmix the batter.

Bake the Cheesecake

Pour the cheesecake filling over the cooled crust.

Smooth the top gently.

Place the springform pan inside a larger roasting pan.

Pour hot water into the outer pan until it reaches about halfway up the sides of the springform pan.

Bake for 55 to 65 minutes, until the edges are set and the center has a slight wobble.

Turn off the oven and leave the cheesecake inside for 30 minutes with the door closed.

Open the oven door slightly and let it cool inside for another 30 minutes.

Remove the cheesecake and cool completely at room temperature.

Make the Blueberry Topping

Add blueberries, water, sugar-free sweetener, and lemon juice to a small saucepan.

Cook over medium heat for 5 to 7 minutes, until the berries soften and release their juices.

Mix cornstarch with 2 tablespoons cold water until smooth.

Stir the cornstarch mixture into the blueberries.

Cook for 1 to 2 minutes more, until glossy and thickened.

Remove from the heat and cool completely.

Chill and Serve

Refrigerate the cheesecake for at least 6 hours, preferably overnight.

Spoon the cooled blueberry topping over the cheesecake before serving.

Add sugar-free whipped cream, fresh blueberries, lemon slices, or lemon zest if desired.

Texture and Flavor

This lemon blueberry cheesecake has a buttery, nutty crust, a smooth and creamy lemon filling, and a glossy, sweet blueberry topping. The crust is compact and holds the filling beautifully, while the filling is rich yet tangy.

The fresh lemon juice and zest create a bright, citrusy flavor that complements the creamy cheesecake. The blueberry topping adds sweet, juicy bursts that balance the tanginess of the lemon.

Served chilled, it feels refreshing and indulgent at the same time.

Tips for the Best Results

A few small details can help your lemon blueberry cheesecake turn out perfectly.

Use Room-Temperature Ingredients

Use room-temperature cream cheese, sour cream, and eggs for the smoothest filling. Cold ingredients can create lumps.

Mix Eggs Gently

Mix the eggs on low speed and only until combined. Overmixing can make the cheesecake dense.

Use a Water Bath

A water bath helps the cheesecake bake gently and evenly. This prevents cracks and creates a creamy texture.

Do Not Overbake

The center should still wobble slightly when the oven is turned off. Overbaking can make the cheesecake dry.

Cool the Topping Fully

Cool the blueberry topping completely before spreading it over the chilled cheesecake. A warm topping can soften the filling.

Chill Overnight

Chill for at least 6 hours, or preferably overnight, for the cleanest slices and best flavor.

Wipe the Knife

Wipe the knife clean between cuts for neat servings. This prevents smearing and keeps the layers distinct.

Easy Variations

This recipe is easy to customize with different flavors and toppings.

Add Raspberries

Replace half the blueberries with fresh raspberries for a lemon-raspberry version.

Add Strawberries

Use sliced strawberries instead of blueberries for a lemon-strawberry twist.

Add Poppy Seeds

Add 1 to 2 tablespoons of poppy seeds to the filling for a lemon-poppy seed cheesecake.

Make It Dairy-Free

Use dairy-free cream cheese, coconut cream, and dairy-free sour cream for a dairy-free version.

Add Coconut

Sprinkle unsweetened shredded coconut on top before serving for a tropical touch.

Serving Ideas

This lemon blueberry cheesecake is best served chilled. A dollop of sugar-free whipped cream and fresh blueberries makes it look and taste extra special.

Thin lemon slices and extra lemon zest add brightness and aroma that enhance the overall taste.

It is perfect for summer picnics, barbecues, holiday gatherings, or any time you want an elegant, refreshing dessert.

Storage Tips

Store leftovers covered in the refrigerator for up to 5 days.

Keep the cheesecake covered with plastic wrap or transfer individual slices to an airtight container.

For the best texture, serve it chilled. The flavor becomes more vibrant as it sits.

Nutrition Information

Approximate nutrition per serving, based on 12 servings:

Calories: ~285
Net Carbs: ~7g
Protein: ~7g
Fat: ~26g
Fiber: ~2g
Total Carbs: ~9g

Nutrition may vary depending on the brands of sweeteners, cream cheese, and other ingredients you use.

Common Mistakes to Avoid

A few simple mistakes can affect the texture of this lemon blueberry cheesecake.

Using Cold Ingredients

If the cream cheese, sour cream, or eggs are cold, the filling will be lumpy. Let them come to room temperature before mixing.

Overmixing the Eggs

Mix the eggs on low speed and only until combined. Overmixing can make the cheesecake dense.

Not Using a Water Bath

Skipping the water bath can cause cracks and uneven baking. Always use a water bath for the best texture.

Overbaking

Bake only until the edges are set and the center has a slight wobble. Overbaking can make the cheesecake dry.

Adding Warm Topping

If the blueberry topping is still warm, it can soften the filling. Let it cool completely before spreading.

FAQ

Can I make this ahead of time?

Yes. This cheesecake is perfect for making ahead. Prepare it the day before and chill until serving.

Can I freeze lemon blueberry cheesecake?

Yes. Freeze the untopped cheesecake for up to 2 months. Thaw in the refrigerator before adding the blueberry topping and serving.

Can I use a graham cracker crust?

Yes. You can use a sugar-free graham cracker crust if you prefer. The texture will be different but still delicious.

Why is my cheesecake cracked?

The cheesecake may have been overbaked, or the oven temperature was too high. Use a water bath and cool slowly to prevent cracks.

Can I use bottled lemon juice?

Fresh lemon juice tastes brighter than bottled. Use fresh juice for the best flavor.

Why This Recipe Works

This Sugar-Free Lemon Blueberry Cheesecake works because the cream cheese and sour cream create a smooth, tangy filling, while the fresh lemon juice and zest provide bright citrus flavor. The blueberry topping adds sweet, juicy fruit that balances the richness of the filling.

It is elegant, perfect for celebrations, and ideal for anyone who wants a cool, creamy dessert without regular sugar. For a refreshing, make-ahead treat that tastes like summer, this lemon blueberry cheesecake is a delicious choice.

Sugar-Free Lemon Blueberry Cheesecake

Author: chef Jennifer
Total Time: 90 minutes
Yield: 1 9-inch cheesecake 1x

Print Recipe

Description

This Sugar-Free Lemon Blueberry Cheesecake is a rich, creamy dessert made with a buttery almond crust, bright fresh lemon flavor, and a glossy blueberry topping. Made without regular sugar, it is refreshing, elegant, and perfect for holidays, celebrations, summer gatherings, or make-ahead dinners. A gentle water bath helps create a smooth, creamy, crack-free cheesecake.

Ingredients

Scale

Almond Crust

1 1/2 cups almond flour
1/4 cup finely chopped pecans or walnuts
3 tablespoons butter, melted
2 tablespoons granulated sugar-free sweetener
Pinch of salt

Lemon Cheesecake Filling

24 oz cream cheese, softened
3/4 cup powdered sugar-free sweetener
3 large eggs, room temperature
1/2 cup sour cream
1/4 cup fresh lemon juice
1 tablespoon fresh lemon zest
1 teaspoon vanilla extract
1 tablespoon cornstarch

Blueberry Topping

2 cups fresh or frozen blueberries
1/4 cup water
3 tablespoons granulated sugar-free sweetener
1 tablespoon fresh lemon juice
1 tablespoon cornstarch
2 tablespoons cold water

Optional Toppings

Sugar-free whipped cream
Fresh blueberries
Thin lemon slices
Extra lemon zest

Instructions

Preheat the oven to 325°F (165°C). Line the bottom of a 9-inch springform pan with parchment paper and lightly grease the sides.
Make the crust: Combine the almond flour, chopped nuts, sugar-free sweetener, and salt. Stir in the melted butter until evenly moistened.
Press the crust firmly and evenly into the bottom of the springform pan. Bake for 8–10 minutes, until lightly golden. Remove and cool slightly.
Make the filling: Beat the softened cream cheese and powdered sugar-free sweetener on low speed until completely smooth.
Add the sour cream, lemon juice, lemon zest, vanilla extract, and cornstarch. Mix just until combined.
Add the eggs one at a time, mixing on low speed only until each egg is incorporated. Avoid overmixing.
Pour the cheesecake filling over the cooled crust and gently smooth the top.
Place the springform pan inside a larger roasting pan. Carefully pour hot water into the roasting pan until it reaches about halfway up the sides of the springform pan.
Bake for 55–65 minutes, or until the edges are set and the center still has a slight wobble.
Turn off the oven and leave the cheesecake inside for 30 minutes with the door closed. Then open the oven door slightly and allow it to cool for another 30 minutes.
Remove the cheesecake from the oven and cool completely at room temperature.
Make the blueberry topping: Add blueberries, water, sugar-free sweetener, and lemon juice to a saucepan. Cook over medium heat for 5–7 minutes, until the berries soften and release their juices.
Mix the cornstarch with 2 tablespoons cold water until smooth. Stir into the blueberries and cook for 1–2 minutes more, until glossy and thickened.
Remove the blueberry topping from the heat and cool completely.
Refrigerate the cheesecake for at least 6 hours, preferably overnight.
Spoon the cooled blueberry topping over the chilled cheesecake. Garnish with sugar-free whipped cream, fresh blueberries, lemon slices, or lemon zest if desired.
For clean slices, wipe the knife between cuts and serve the cheesecake chilled.

Notes

Use room-temperature cream cheese, sour cream, and eggs for the smoothest filling.
Mix the eggs gently and avoid overmixing to prevent a dense cheesecake.
A water bath helps the cheesecake bake evenly and reduces cracking.
Do not overbake. The center should still have a slight wobble when the oven is turned off.
Cool the blueberry topping completely before adding it to the chilled cheesecake.
For the best texture and cleanest slices, chill the cheesecake overnight.
Allulose, monk fruit, erythritol blends, or another baking-friendly sugar-free sweetener can be used according to taste and package conversion instructions.
To freeze, freeze the cheesecake without the blueberry topping for up to 2 months. Thaw overnight in the refrigerator, then add the topping before serving.
For a raspberry variation, replace half the blueberries with raspberries.
For a lemon-strawberry version, replace the blueberries with sliced strawberries.
Add 1–2 tablespoons of poppy seeds to the filling for a lemon-poppy seed variation.
Store covered in the refrigerator for up to 5 days.

Prep Time: 25 minutes
Cook Time: 65 minutes
Category: Dessert
Cuisine: American

Nutrition

Serving Size: 12 servings
Calories: 285
Fat: 26g
Carbohydrates: 9g
Fiber: 2g
Protein: 7g

Keywords: Lemon Blueberry Cheesecake

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