Depends, but a traditional New York Style Cheesecake about $10-12 buying just the ingredients (cream cheese, sour cream, eggs, milk, etc). To get started, it might be a bit more because you have to buy all the non-perishables as well.
How Much Does It Cost To Make A Cheesecake?
Depends what country you are in and what kind of cheesecake you make. Here are some recipes for you: uktv.co.uk