Jamie Oliver served up a pork and mash gratin with sage and cheddar cheese using just 5 ingredients on Jamie’s Quick and Easy Food.

The ingredients are: 800 g potatoes, 400 g piece of higher-welfare pork fillet, 2 sprigs of fresh sage, 40 g Cheddar cheese and 4 slices of higher-welfare prosciutto.

See more recipes from Jamie in his new book titled: 5 Ingredients – Quick & Easy Food, available from Amazon now.