In a food processor, blend pumpkin and cream on high until smooth.
Over low heat, add all ingredients to a medium sauce pan. Stir regularly for 10 minutes or until all chocolate is melted. Pour into a pitcher or container to serve.
Refrigerate when not in use. After storing, shake or stir before using again. Add more half and half if it begins to thicken.
Notes
Topped with whipped cream, chocolate syrup, and/or pumpkin pie spice, this indulgent fall drink is hard to beat.