The following questions will help you. It's not necessary to answer all of them.just use them to think about what you will say and the language you will need.
What is the most unusual thing you have ever tried?
What is your favourite home-made dish?
How long have you/ has your mother/father/sister/brother been cooking it?
What ingredients/kitchen tools do you need to make this dish?
How is it cooked? (Use "should" to give advice on how to prepare the dish)
