Preheat oven to 450°F.
Line a 10-inch springform pan with 2 large pieces of parchment paper so that they overlap in the middleand have a 2 inch overhang as the cake rises!!!! (or use nonstick foil)
Beat cream cheese and sugar in your mixer on low, then on high 5-6 minutes.
Whisk cream and flour together, then add to mixer and beat on low..
Add eggs and yolk, one at a time to blend.
Finally, add vanilla.
Pour into pan and bake 35 minutes. (I may go 40 next time)
It will be very jiggly when you remove it!
Cool 3 hours and then chill at least 4 hours or overnight.