Heya all!
At the moment this is for Warlock only but im positive it can be done on many different classes.
Cookie is a fairly easy fight and he got around 4 million hitpoints.
In the cookie fight he throws good food and bad food, the bad food does AoE and you should not eat it while the good food gives you a stacking buff with haste. The special thing about being warlock on this boss fight is that if you are using fel armour your ticks will scale with your haste. So run and get all the food you can find i think i had 480% haste at the max and i was healing myself 4.5k nonstop.
Edit: I can also say that the buff stays for 30 seconds and you can have max 99 stacks equal to 2970% haste...
So really just run around and pick as many up as you can, don't stand in the bad food and it's piece a cake to do this with almost insant soulfires aswell, don't forget to refill your buff tho so it wont disapear!
Also do not stand to close cookie as he does AoE to those to close his cauldron.
So pretty much:
1. Eat food
2. Use fel armor
3. Smile
4. ???
5. Profit....
Sorry for grammar and spelling.
Happy Soloing!