A Pat of butter is a food ingredient made with the cooking skill. Players can make one by churning a bucket of milk, which gives 40.5 cooking experience, or a pot of cream, which gives 22.5 cooking experience, in a dairy churn.
A pat of butter is used by adding it to a baked potato to make a potato with butter. After adding the butter, players can then add additional topping(s). (See this list of potato toppings for information.)
How to obtain butter
An efficient way of churning butter is by using pots of cream to churn the cream into butter. This saves inventory spaces, time and trips to the bank by not having buckets, from milk, using up inventory space. On the other hand, using milk with a full inventory will auto-drop the buckets, making it a much cheaper way of making butter while using the same amount of spaces.
Another method of churning butter (much slower, only suitable for players training construction)