Usage patterns
〈人〉が料理人になるfor someone to become a cook
He wants to become a famous cook in the future.
料理人として働くto work as a cook
She works as a cook at this restaurant.
一流の料理人a top-class cook
He is known as a first-rate chef.
料理人を目指すto aim to become a cook
She has aimed to become a cook since she was young.