Workshops are the buildings you use to craft ingredients into finished items. It may seem like a strange name, to group disparate things like dairy barns and alchemists into the same category, but that is the nomenclature that Castleville Legends uses, so that's the name I'm using here.
Below is a list of the workshops available in the game. Click on the name of a workshop to find out more about it, such as purchase price, crafting recipes, the level at which it becomes available, etc.
Fizzy Drink Maker