Preheat oven to 350º F.
In a large bowl or mixer, beat cream cheese for 2-3 minutes, or until smooth.
Add brown sugar and beat for another 3-4 minutes, or until fluffy and lightened in color.
Beat in eggs one at a time, then mix in heavy cream and vanilla extract.
Sprinkle flour, cinnamon, nutmeg and salt into cream cheese mixture and beat until just incorporated.
Place pie crust in preferred pie dish, trimming off excess and crimping edges. Pour filling into pie pan, then place in oven.
Bake pie for 35 minutes, or until center is almost set but still jiggly.
Remove from oven and let cool completely. If desired, dust with powdered sugar, cut into slices, serve and enjoy!
