Human: What is the most economical way to make a large quantity of chicken soup? Assistant: 
The most economical way to make a large quantity of chicken soup is to buy a whole chicken and use the entire bird; use the bones to make a stock, and the meat can be added to the soup later. You can also buy an inexpensive cut of chicken or chicken parts to reduce the cost of the meal. Additionally, adding vegetables like carrots and onions will help to add flavor and bulk to the soup.