Lower oven temp to 300.
Beat cream cheese, mascarpone, flour on low speed, scraping down the sides as needed.
Once smooth, add sugar.
Add vanilla
Add eggs, one at a time just until blended.
Pour into cooled crust and smooth the top with a spatula.
Bake until the center has a slight jiggle. In this small 6 inch pan mine took 1 hour 25 minutes. If you use an 9 inch pan it will take less time so keep an eye on it.
Shut oven and lave cake inside 1 hour to cool. Remove to counter and cool completely.
Chill overnight and remove sides of pan.
Sprinkle sugar on top and torch until caramelized.