Classic Keto Cheesecake
This full baked keto cheesecake features a buttery almond flour crust and a silky cream cheese filling with the perfect amount of sweetness. With no graham crackers, no regular sugar, and absolutely no compromise on flavor, it tastes just like the real thing.
Equipment
- 9-inch springform pan - essential for clean release
- Stand mixer or electric hand mixer
- Large mixing bowl
- Measuring cups and spoons
- Rubber spatula
- Large roasting pan - for the water bath
- Heavy-duty aluminum foil - for wrapping the springform pan
- Wire cooling rack
- Offset spatula - optional, for smoothing the top
Ingredients
For the Almond Flour Crust
- 2 cups blanched almond flour - 200g, finely ground, not almond meal
- 3 tablespoons granulated erythritol or monk fruit sweetener - 45g
- 1/3 cup unsalted butter - 75g, melted
- 1/4 teaspoon salt
For the Cream Cheese Filling
- 32 oz full-fat cream cheese - 900g, 4 standard 8 oz blocks, softened to room temperature
- 1 cup granulated keto sweetener - 200g, erythritol, allulose, or monk fruit blend
- 1 cup full-fat sour cream - 240ml, at room temperature
- 3 large eggs - at room temperature
- 2 teaspoons pure vanilla extract
- 2 tablespoons fresh lemon juice
- 1/4 teaspoon salt
For Serving (Optional)
- fresh berries - raspberries, blueberries, or sliced strawberries
- sugar-free caramel sauce - for drizzling
- whipped heavy cream - freshly whipped
Instructions
- Bring all refrigerated ingredients to room temperature for at least 2 hours before beginning.
- Preheat oven to 325°F (160°C). Grease a 9-inch springform pan and line the bottom with parchment paper. Wrap the outside with two layers of heavy-duty aluminum foil to protect from the water bath.
- Combine almond flour, keto sweetener, and salt in a medium bowl. Stir in melted butter until the mixture resembles wet sand. Press firmly into the bottom of the springform pan using a flat-bottomed measuring cup.
- Pre-bake the crust for 10 minutes until lightly golden at the edges. Remove and set aside while preparing the filling.
- Beat softened cream cheese on low speed until completely smooth, about 2 minutes. Scrape down sides of the bowl frequently.
- Add keto sweetener and beat on low until incorporated, about 1 minute. Add sour cream, lemon juice, vanilla, and salt, mixing on low until smooth.
- Add eggs one at a time, beating after each addition only until the yolk disappears. Do not overmix once eggs are added to prevent cracking.
- Pour filling over the pre-baked crust and smooth the top with an offset spatula. Place the foil-wrapped springform pan in a large roasting pan and pour hot water into the roasting pan until it reaches 1 inch up the sides.
- Bake at 325°F (160°C) for 60 to 70 minutes until the edges are set and the center has a gentle wobble. Tent with foil if the top browns too quickly.
- Turn off the oven and crack the door open 1 inch. Leave the cheesecake in the oven for 1 hour to cool gradually and prevent cracking.
- Remove the cheesecake from the water bath and carefully remove the foil. Run a thin knife around the inside edge of the pan. Cool completely on a wire rack for about 1 additional hour.
- Cover loosely with plastic wrap and refrigerate for a minimum of 4 hours, preferably overnight. The texture improves dramatically after a full overnight chill.
Notes
- Room temperature ingredients are non-negotiable. Cold cream cheese and eggs will not blend smoothly and can cause lumps or a seized filling. Plan for 2 hours of counter time.
- Use block cream cheese, not tub. Tub cream cheese contains stabilizers and added water that prevent the filling from setting properly.
- Mix on the lowest speed the entire time. High speed incorporates too much air, leading to cracks during baking.
- Do not skip the water bath. It creates a humid environment that prevents the surface from drying out and cracking.
- Use the jiggle test to check doneness. The center should still have a gentle wobble like set Jello. If it's completely firm, it's overbaked.
- Cool gradually. The oven-off cool-down method is just as important as the water bath for preventing cracks.
- Chill overnight for the best texture. The filling becomes firmer, denser, and far more sliceable after 24 hours in the fridge.
- Store covered in the refrigerator for up to 5 days. Freeze individual slices wrapped in plastic wrap for up to 2 months.
- Sweetener options: Allulose produces the creamiest result with zero aftertaste. Erythritol can have a slight cooling sensation. Monk fruit blends are a popular middle ground.
- Avoid liquid sweeteners. The additional liquid can affect the texture of the filling and how well it sets.
- Top with fresh berries, sugar-free caramel, or lemon curd for a beautiful presentation and added flavor.