Preheat oven to 350. Prepare a 9" pie pan with cooking spray and flour; set aside. To prepare crust, combine corn flake crumbs and oil in a small mixing bowl. Press into prepared pan. Bake for 10 minutes. In a saucepan, heat marshmallows and milk over low heat until marshmallows are melted. Cool 10 minutes. In a mixing bowl, combine sour cream, cream cheese, and vanilla extract. Mix until all is smooth. Stir in marshmallow mixture and fruit cocktail. Turn into prebaked crust. Chill until set. Recipe By : Homemade Is Better