Low Carb Keto Blueberry Cheesecake

This low carb keto blueberry cheesecake features a buttery almond flour crust, a silky cream cheese filling sweetened with erythritol, and a vibrant blueberry swirl for a truly indulgent dessert that stays within keto macros.

Course Dessert

Cuisine American, Keto, Low Carb

Keyword almond flour crust, erythritol, keto cheesecake, low carb blueberry cheesecake, sugar free dessert

Prep Time 25

Cook Time 55

Total Time 5

Servings slices

Calories 290kcal

Equipment

9 inch springform pan
Mixing Bowls
hand mixer or stand mixer
Rubber spatula
Saucepan
baking sheet

Ingredients

For the almond flour crust

1 1/2 cups blanched almond flour
1/4 cup granulated erythritol
1/4 cup unsalted butter, melted
1/2 teaspoon ground cinnamon optional
1/8 teaspoon fine sea salt

For the cheesecake filling

24 ounces full-fat cream cheese, softened brick style, not whipped
3/4 cup granulated erythritol
3 large eggs, room temperature
1/2 cup sour cream, room temperature full fat
1/4 cup heavy whipping cream, room temperature
1 1/2 teaspoons pure vanilla extract
1 teaspoon grated lemon zest from about 1/2 lemon
1/8 teaspoon fine sea salt

For the blueberry swirl topping

3/4 cup fresh or frozen blueberries do not thaw if frozen
2 tablespoons granulated erythritol
1 tablespoon water
1/2 teaspoon lemon juice freshly squeezed

Instructions

Preheat the oven to 350°F and line the bottom of a 9-inch springform pan with parchment paper, then lightly grease the sides.
Stir together the almond flour, erythritol, cinnamon, and salt for the crust in a mixing bowl until well combined.
Pour in the melted butter and mix with a fork until the almond flour is evenly moistened and forms a crumbly dough.
Press the crust mixture firmly and evenly into the bottom of the prepared springform pan, packing it tightly with your fingers or the bottom of a measuring cup.
Bake the crust for 10 to 12 minutes until just lightly golden at the edges, then remove from the oven and let it cool while you prepare the filling, leaving the oven at 350°F.
Beat the softened cream cheese in a large mixing bowl with a hand mixer or stand mixer on medium speed until completely smooth and fluffy, scraping down the sides of the bowl as needed.
Add the erythritol to the cream cheese and beat again until fully incorporated and no gritty texture remains.
Beat in the sour cream, heavy cream, vanilla, lemon zest, and salt on low to medium speed until the mixture is smooth and creamy.
Add the eggs one at a time, beating on low speed just until each egg is incorporated and stopping to scrape the bowl, taking care not to overmix to avoid excess air in the batter.
Wrap the outside of the springform pan tightly with a double layer of heavy-duty foil to prevent leaks, then place the pan on a rimmed baking sheet.
Pour the cheesecake filling over the cooled crust in the springform pan and smooth the top with a spatula.
Combine the blueberries, erythritol, water, and lemon juice in a small saucepan over medium heat and cook, stirring occasionally, until the berries burst and the mixture thickens slightly, then remove from the heat and let cool for a few minutes.
Spoon small dollops of the blueberry mixture over the top of the cheesecake batter and gently swirl them into the surface with a toothpick or knife to create a marbled pattern.
Place the baking sheet with the cheesecake on the center rack of the oven and carefully pour hot tap water onto the baking sheet to create a shallow water bath around the pan.
Bake the cheesecake for 40 to 45 minutes until the edges are set and the center still has a slight wobble when gently jiggled.
Turn off the oven, crack the oven door open slightly, and let the cheesecake cool inside the oven for 45 to 60 minutes to reduce the risk of cracking.
Remove the cheesecake from the water bath, discard the foil, and run a thin knife around the inside edge of the pan to loosen the sides, then let it cool completely at room temperature.
Cover the cooled cheesecake and refrigerate for at least 4 hours or preferably overnight until fully chilled and set before slicing and serving.

Notes

For the smoothest texture, ensure the cream cheese, eggs, sour cream, and heavy cream are all at room temperature before mixing. Use a gentle mixing speed and avoid overbaking so the center retains a slight jiggle, which will firm up as it chills. The blueberry swirl amount is kept moderate to maintain keto macros, but you can add a few fresh berries on top of each slice just before serving if your daily carbs allow.

Nutrition