Make WoW Gold from Cooking

Having level 450 cooking can be convenient as well as profitable. You can make 400 to 600 gold per hour by cooking. The first thing is to remember to do your daily cooking quest each day. This will give you Northern Spices to cook with, and Dalaran Cooking Awards to buy more recipes or Northern Spices.  You also receive a bag of spices which usually contains a few Northern Spices or other goods. You can trade 1 Dalaran Cooking Award for 10 Northern Spices if you don't need to buy any of the recipes.

There is always demand for cooked food due to the need for well fed buffs in raids. A great place to start is by going to Sholazar Basin and klling the mammoths there. They will drop Chunk o' Mammoth which is used to cook Great Feasts and Mega Mammoth Meal. Be sure to pick up everything they drop and sell the grey items to a vendor. There are other good mobs to kill for meat, just find out what food sells best on your realm.

Some popular recipes are:
Worg Tartare
Hearty Rhino
Tender Shoveltusk Steak

Once you have gathered your meat, cook it using the Northern Spices you have been collecting from your cooking daily. The fewer spices that you have to buy from other players the better, since this will cut into your profit. The best time to post your food in the auction house is before scheduled raid times. You will have to figure out when this is as it varies across different realms.

If you also have fishing you can cook fish feasts which generally sell very well. Cooking usually doesn't make as much gold as mining or herbalism, but it can be great if you already have a bunch of minerals/herbs waiting to be bought.