Adjust the top rack to be positioned in the middle of the oven.
Keto Cheesecake Crust:
Wrap the outside of a 10-inch springform pan in a double layer of foil. Covering the bottom and sides of the pan, only from outside. This will prevent the cheesecake from water leaking in.
Spray the springform pan inside with baking spray and set aside.
Add all the ingredients to a large bowl and stir until fully combined.
Press the mixture into the prepared springform pan. Using a measuring cup or your fingers, press the crust and try to line the sides about 1 inch up.
Refrigerate for at least 20 minutes.
Keto Cheesecake Filling:
Make sure all the ingredients are of room temperature before you begin.
In the bowl of a stand mixer or in a large bowl using a hand mixer, beat the cream cheese until light and fluffy on medium-low speed, for about 1 minute. Add sour cream and cream and beat for another minute, stopping to scrape the sides and bottom of the bowl.
Add the sweetener and continue beating until well combined and creamy.
Add the vanilla, and eggs one at a time and beat after each addition until just combined. Careful not to over-mix. Stop to scrape the sides and bottom of the bowl when mixing.
Add the strawberry puree and beat just until combined.
Fold in the sliced strawberry pieces with a spatula.
Pour cheesecake batter into the prepared crust.
Set the springform pan in a large roasting pan, that is deep enough to add water to it. Pour HOT water into the roasting pan, about halfway up the sides of the springform pan.
Transfer to the preheated oven.
Bake for 1 hour to 1 hour 20 minutes, until it only slightly jiggles in the center. I baked my cheesecake for exactly 1 hour and 20 minutes at 300 F.
Turn oven off, but leave the cake in the oven with the door slightly opened to cool slowly for an hour.
Transfer cake to a cooling rack and take off the foil. Run a butter knife around the edges to prevent the cheesecake from sticking to the sides. Cool for another 2 hours and transfer to the fridge to chill for 5-6 hours or better overnight.
Sugar-Free Berry Sauce:
Place a medium saucepan on the stove over medium heat. Add the strawberries.
Add water, lemon juice, lemon zest, and the sweetener.
Stir and simmer for 4-5 minutes, crushing a few berries.
Slice cheesecake and serve with the Sugar-Free Berry Sauce and Sugar-Free Whipped Cream on the side.