This epic journey all begins with a burger, and we used a quarter-pound ground beef patty that was about 1/2-inch thick. This may be obvious, but it’s worth saying anyway: there is plenty of fat in this recipe because of the bacon, so there’s no need to overdo it with the burger. Try to get a leaner blend of ground beef for your patty. We went with 96 percent lean, 4 percent fat. Before you get started, sprinkle your burger with a little pepper and sea salt to make sure it is well seasoned.