Method
Fine dice the onion. Slice the bacon. Fry the onion in hot oil until golden. Add the bacon and continue to fry till just cooked. Remove from the heat. Allow to cool. Add to the minced beef. Mix together. Season with the wholegrain mustard, sea salt and cracked black pepper. Form into one inch thick rounds either by hand or by use of a pasty cutter as a mould. Wrap in clingfilm and chill for half an hour. Cook using your preferred method of pan, grill, oven or barbecue. Serve also as preferred in toasted buns or not, with salad or without, garnished with mayonnaise or plain. With melted cheese, gherkins or however you please. Enjoy.