speciality

noun
1
a type of food or product that a restaurant or place is famous for because it is so good
خوراک ویژه, غذای مخصوص, غذای معروف
2
an area of work or study that somebody gives most of their attention to and knows a lot about; something that somebody is good at
تخصص, مهارت ویژه
My speciality is international tax law.