Cooks Assistant

Official quest description: The Duke of Lumbridge is having a birthday, but the cook forgot to purchase the ingredients for the cake. The Lumbridge castle cook is in a mess; he needs a lot of ingredients and does not have much time.
Release date: Unknown
Start: Go to Lumbridge Castle. Talk to the cook; tell him that you will help.
Difficulty: *****
Length: Short
Members only: No
Requirements: None
Items needed:
Bucket
Pot
Monsters to kill: None(although you can kill a chicken to get an egg.)
Rewards
1 Quest point
300 Cooking experience
Spoiler warning: Plot and/or ending details follow.
Starting Out
To begin this quest, the player should talk to the cook in the kitchen of Lumbridge Castle's first floor. He will tell the player that he needs ingredients to make a cake for Duke Horacio for his birthday. He wants the player to retrieve flour, milk, and an egg, and to bring those items back to him.
Before heading off to collect the ingredients, players should take the pot that is sitting on the table in the kitchen. There is also a bucket that the player will need to get in the cellar through the trapdoors in the kitchen. You can also buy both of these items in a general store.
[edit] Obtaining an Egg
An egg can be found to the north of Lumbridge. Cross the bridge going across River Lum northeast of the castle and follow the path north. After a little while, you will come across a chicken farm on the west side of the path.Kill a chicken to find an egg.Or take an egg in the middle of this barn.
Obtaining Milk
To obtain milk, players require a bucket and a dairy cow. Dairy cows can be found by following the path back south from the chicken coop. On the east side of the path there will be a gate that will and through it will be a dairy cow that you can milk. Just left-click on the cow with a bucket in your inventory and you will get the milk.
Obtaining Flour
To get the flour, head across the bridge back towards Lumbridge Castle, but this time head north, then west, along the path running from the castle. Follow this path and a field of wheat should appear to the north. Pick some grain.
Go to the windmill that is next to the field and head up to the top floor. Put the grain into the hopper and pull the lever. Now head down to the ground floor and if you have a pot in your inventory, empty the flour bin. If you don't want to do this, you can always pick up some flour from the food store in Port Sarim for 14 coins.
Now that all three of the ingredients have been collected, head back to the cook and the quest will be completed.
Quicker Method
Buy the ingredients from the Grand Exchange.
Speak with the cook to start the quest.
Speak to him again. Quest complete.