Pumpkin soup is a usually ‘bound’ soup made from a purée of pumpkin. It is made by combining the meat of a blended pumpkin with broth or stock. Pumpkin soup is a usually ‘bound’ soup made from a purée of pumpkin. It is made by combining the meat of a blended pumpkin with broth or stock. Pumpkin soup is a usually ‘bound’ soup made from a purée of pumpkin. It is made by combining the meat of a blended pumpkin with broth or stock. Pumpkin soup is a usually ‘bound’ soup made from a purée of pumpkin. It is made by combining the meat of a blended pumpkin with broth or stock.