James Martin once worked in one of the oldest diners in America, so he's well-placed to judge what makes the ultimate burger recipe. Season the steak mince with salt and freshly ground black ...
Read below for the recipe. Best bun type: "Gotta love a good seeded bun with just the right amount of sweetness," he said. "Brioche is also a soft decadent touch." Serves: 1 Open the burger bun ...