Beat in pumpkin purée, vanilla, spices, and salt until combined
In a separate bowl, whip heavy cream to soft peaks
Add powdered sugar and vanilla, beating to medium peaks
Fold one-third of whipped cream into pumpkin mixture to lighten
Gently fold in remaining whipped cream until smooth and airy
Spoon or pipe into dessert cups
Chill before serving
Notes
Use fully softened cream cheese for a lump-free mousseFold gently to keep the texture lightChill overnight for best flavorAdd crunchy toppings just before serving