So, I had a funny flashback in the locker room before tonight's class: as I was putting on my chef's whites, I had a vivid memory of 30+ years ago when I was an altar boy (!), when I'd be in the sacristy putting on my cassock and surplice to get ready for serving mass. Just something about the ritual of dressing in a uniform for work ...
Ok, so tonight's class. Stocks are the foundation of French cooking - so many French dishes require a sauce based on a stock, or there'll be a soup or stew with a stock base. The base of almost all stocks are animal bones, which give the stock flavor and body. Various aromatics, including herbs and vegetables, are added to provide even more layers of flavor. For our third class made stock - several as a four-person team in smallish quantities, and a couple which we done by one of our chef instructors, with some input by the class.
I'd made stocks at home a few times, usually chicken stock (I usually start with a full chicken at home, instead of bones, and then use the meat for sandwiches). I'd also helped by mum when I was a kid - she'd taken a series of Cordon Bleu classes and one of the first things she started doing at home was making stocks: I remember trays of bones going into the oven to be browned, and then we'd spend a couple of hours skimming the stock as it simmered. But it is one of those things that is best done in a large quantity, because of the time commitment, and a professional kitchen is well-equipped for that.