Beat cream cheese in a large bowl until smooth.
12 oz cream cheese
Add pumpkin puree, sour cream, and molasses, brown sugar, granulated sugar, and vanilla; beat until smooth. Scrape sides as needed.
2/3 cup pumpkin puree, 2.5 tbsp sour cream, 1/4 cup packed light brown sugar, 1/4 cup granulated sugar, 1 tsp vanilla extract, 1 tsp molasses
On low speed, mix in egg and yolk one at a time, just until combined. Do not overmix.
1 large egg yolk, 1 large egg
Fold in spices, flour, and heavy cream until just combined.
1 tsp ground cinnamon, 1/2 tsp ground ginger, 1/4 tsp ground nutmeg, 1/8 tsp ground cloves, 1 tsp all-purpose flour, 1 tbsp heavy cream