Cook's Assistant is the oldest of the RuneScape quests, and is often one of the first quests completed by new players as it is fairly simple. Players can complete Cook's assistant without leaving Lumbridge.
Items Needed:
Bucket
Pot
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.
How to get 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. An egg appears in the middle of this barn.
How to get the Milk:
You have to have your bucket with you for this task. You have to go to a Dairy Cow which can be located near Al Kharid entrance. You just have to left-click on the cow with your bucket and you get your Milk.
How to get The 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 and you get your Flour.
Talk to the Cook when Your Done.
Quest Complete.
A Faster Way to Complete this quest is:
Buy the ingredients from the Grand Exchange. Speak with the cook to start the quest. Speak to him again.
Quest Complete.
Rewards:
1 Quest Point
300 Cooking experience