Culinarian Guide
Culinarian is a specific crafting class, supplies all classes with a different meal. This class requires a most assortment of ingredients (it seems to be comparable with summary assortment of materials of all other crafting classes), and this fact may make you need some external storage for your items.
To leveling a Culinarian you'll also needs to be skilled Botanist and Fisher. Skills of Alchemist and Miner will be a good support in obtaining of some ingredients such as water or salt.
Culinarian's Guild is located in Limsa Lomnisa like a Fisher's Guild, and you able to start fishing and cooking as soon, as you complete 10lv Mail Scenerio Quest.
Starting
After that you join the Culinarian's guid and obtain your first tools, you is absolutely free to what to do, but it is usefull to complete some first quests to obtain more crystals for further crafting. All ingredients, which you may need for the first time, you may buy form guild receptionist and in the nearest market|. Also they can be found nearby of Limsa Lominsa.
One thing, you may troubled with, is a journey to Botanist guild in Gridania. TODO: see, what ingredients are needed till 20th level and what of them may be found in La Noscea.
The guild will provide you with all necessary tools and equipment while you completing guild quests. And this way, it is usefull to don't foreget about them if you don't want to make this gear by yourself.
Crafting is a not simple task, and it will be better, if you have HQ gear: more bonuses from it will never be useless.