In a mixing bowl blend cream cheese, canned pumpkin and sweetener with a hand mixer. Then add in all ingredients under the pumpkin spice mix. If you don't have indivdual spices and only have the pumpkin spice already together use 1.5 teaspoons of it.
Do a small taste test. Decided if you want to use the added liquid sweetener. Once perfect beat in one egg at a time.
Be sure to scrape the sides to make sure there are no lumps
Line spring form pan with parchment paper then pour in batter. And give a light tap on the counter 2 or 3 times for air bubbles to rise to the top. Careful some springform pans may leak. Also make the best seal possible when lining the pan to avoid leaks as well.
Place in oven still at 325°F for 40-60 minutes. Do your first check at 40 minutes due to wide oven ranges this is the safest check point. If edges are brown and middle is slightly jiggly you can pull it out.
On a oven cooling rack allow it to cool fully. After completely cool cover then place in refriderator for a minumum of 4 hours or overnight. Remove, then finally you can serve.