Cooking is an easy skill to level up, but has a lot of hard decisions to make along that skill route.

It really comes down to cost, speed and time.

If you want to make profit the only way you'll be able to do that as a free to play player is by fishing your own lobsters (this is were the time consuming part comes to play) once you've cooked those lobsters you've caught sell them and continue.

You can even your profit to 0 GP if you catch let's say... 10k lobster and sell them after you've cooked them - you can buy more lobsters with that profit and continue selling & buying until you're totally out. You wont lose money and it'll be quicker XP than actually gaining profit.

If you want to reach 99 cooking in a week you'll have no choice but to spend a lot of money on lobsters.

Really in the end it's up to you how you'd like to go about your cooking.

Cost Vs. Speed Vs. Time

Thanks for the answer! i think i might try to become members soon..

If i was you i would buy P2P its so much faster and you get the cape

Atm im at 94 cooking and ive made about 5 mil.
Do Monks till 94 then sharkies its about 12gp profit per fish so easy money.

But you should have atleast 3 mill to start off with.