Paul Ainsworth served up bangers and mash using BBQ Cumberland sausages, jacket potatoes and onion gravy on Royal Recipes with Michael Buerk. The dish is said to be a favourite of Prince Harry.

The ingredients are: 4 baking potatoes, knob of butter, plus extra to serve, 2 Cumberland sausage rings, sea salt and black pepper.

For the red onion gravy: olive oil, 25g butter, 2 red onions, finely sliced, 2 tsp dark brown soft sugar, 2 tsp plain flour, 200ml red wine, 500ml chicken stock and ½ tsp English mustard.

See recipes for the Royal family in the book titled: The Royal Touch: Simply Stunning Home Cooking from a Royal Chef, available from Amazon now.