Preheat oven to 325°F
Cream together room temp cream cheese and sour cream
Add in keto sweetener, vanilla extract, cinnamon then mix again
Then, add in one egg at a time until everything is combined and smooth, be sure to scrape the sides and bottom of the mixing bowl.
Pour cheesecake filling on top of the crust. Give it about 3 taps on the counter to allow the air bubbles to rise. Let it sit there for about 5 minutes.
Combine the ingredients under the snickerdoodle topping and sprinkle across the cheesecake.
Place cheesecake in the oven for 45-60 minutes checking for browning of the edges and a slight jiggle in the center. If using a water bath you will have to add more time.
Once cheesecake has baked, turn off the oven and crack the door leaving the cheesecake in there at least an hour. Then, remove from oven and allow it to fully cool.
After cheesecakes has cooled place the cheesecake in the refrigerator for at least 4 hours or overnight to set.
Serve.