In this task the focus is on physical knowledge about the world. Given the provided goal task in the input, describe a process that would lead to the asked outcome. This process often involves physical motions with objects, such as moving them, arranging them in a certain way, mixing them, shaking them, etc. 
Example: How do you remove keys from a computer keyboard for cleaning?
Example solution: Place the tip of a knife under the corner of a key and gently twist to pop it off.
Example explanation: The process of removing keys from a keyboard for cleaning is descriptive and logical.

Problem: To prepare a cast iron pain for frying.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Solution: Over medium heat, add butter and oil. Melt the butter with oil.