Defeating the Culinaromancer

Official quest description: You have protected all 8 members of the council, but your troubles with the Culinaromancer aren't over yet! He has teleported back to his own dimension, where he'll be ready to cause more trouble. You must defeat him for good! Please note that all prayers will not be allowed in the dimension. You also won't be able to go back and recover your items when you die.
Release date: 15 March 2006
Start: After you finish the 8 subquests, a white portal will appear in the dining room. Enter it when you're ready to fight.
Difficulty: *****
Length: Short
Members only: Yes
Requirements:
176 quest points
Completed Desert Treasure
Completed Horror from the Deep
Able to defeat some high-level monsters without prayer.
Items needed: Certain armour and weapons for each boss, lots of good healing food such as sharks. Super sets are also recommended.
Monsters to kill: None
Spoiler warning: Plot and/or ending details follow.
[edit] Walkthrough

When you're in the strange dimension, you'll find the Culinaromancer, a few white portals that lead back to Lumbridge, and one of your previous quest bosses. The Culinaromancer is too strong to be defeated until you've defeated the first 5 bosses. You can leave and stock up after defeating one boss without losing your place in the fight. Sharks or higher healing foods are recommended during the fights if you have lower than 60 defence. If you try to enter the portal before finishing Desert Treasure, a message will appear saying "You need to have completed Desert Treasure to access this portal." You can and should bank after every kill to restore pots and food!
Agrith-Na-Na -
This is Agrith-Naar from the Shadow of the Storm quest, but he is now made of bananas and is level 146. He uses melee up close and fire blast at a distance. He also teleports you close to him if you run from him. Kill him however you like, with food. He drops one banana.
Flambeed -
This is Fareed from Desert Treasure. He's level 149 now. You need Ice Gloves to wield a weapon. He's harder to defeat without prayer, but you should just kill him however you like with lots of food. If you're maging, be sure to use water spells & mage armour (Mystic robes, Ahrim's robes, etc.). If you're ranging, use Ice arrows. He drops cakes. Also if you do not have ice gloves it is a good idea to have a full inventory of something and dont eat until you are at low hp.
Karamel -
This is essentially the female counterpart of Kamil from the Desert Treasure quest. Fight her up close with a fire spell that you're well above the required level to do, since she lowers your stats. Bring stat restore potions and lots of food. As per usual, melee doesn't work very well. However, unlike her male counterpart in Desert Treasure, Karamel's melee attacks don't do any damage. When defeated, she drops a choc-ice. If maging, use mage armour.
Dessourt -
This is Dessous from Desert Treasure. Melee doesn't work very well on him, but magic does. Bring lots of food, then defeat him as quickly as possible. If using melee and you don't have a very high level, it is recommended that you bring a super set. He can be fairly hard to hit even with one. He drops chocolate dust. If maging, use mage armour.
Gelatinnoth Mother -
This is the Dagannoth Mother from the Horror from the Deep quest. She can hit over 20 with melee, but she uses ranged from a distance, which is weaker. She changes colour depending on her weakness. She is level 130. Using magic enables you to cover 4 of the 6 colours with one set of armour & weapons. However, even if you plan to primarily fight with magic, ranging armour is recommended to protect against this monster's ranging attack.
Culinaromancer -
After you've defeated the Gelatinnoth Mother, the Culinaromancer himself will attack you. He's level 75, hits 20+, and has practically no defence. He uses magic, but tries to get up close to attack as well. Kill him with any attack and bring food. He is a much easier opponent than the previous monsters, if you are combat level of 100+ you could kill him in a few hits. Dragon dagger special attacks are very effective on him. When you've killed the Culinaromancer you will see a short cutscene, it's very funny!