How to Make Plain Cheesecake?

3 (8oz) pkg of cream cheese, 1cup sugar, 4 eggs, 1 tsp vanilla, 2 tbsp cornstarch, 1 (12oz) sour cream, 4 tsp sugar, 10 inch springform pan – sprayed with Pam and a Graham cracker crust. Mix all ingredients together, pour into crust and bake for 40 minutes at 350 degrees.