Chicken soup celeriac, parsley root and parsnip. Soup vermicelli, semolina dumplings or thin Spätzle noodles or small dumplings are also added to the soup. Even other vegetables may be used, such as green peas, a whole tomato and whole onions boiled along with the soup, mushrooms, asparagus, celery, green pepper, cauliflower, kohlrabi, green beans or parsley, in different combinations. In Indonesia chicken soup might appear as "sayur sop", vegetable and chicken broth soup that contains chicken pieces, potato, green beans, carrot, celery, and fried shallot. Another chicken soup variant commonly found across the country is soto ayam; a turmeric yellow spicy chicken
Soup few vegetables to eggs, meat, cream or pasta. Doctor John T. Dorrance, a chemist with the Campbell Soup Company, invented condensed soup in 1897. Canned soup can be condensed, in which case it is prepared by adding water (or sometimes milk), or it can be "ready-to-eat", meaning that no additional liquid is needed before eating. Condensing soup allows soup to be packaged into a smaller can and sold at a lower price than other canned soups. The soup is usually doubled in volume by adding a "can full" of water or milk, about . Since the 1990s, the canned soup