Preheat the oven to 400F. Arrange the bacon on top of a broiler pan or a cooling rack over a baking sheet. Bake the bacon until mostly cooked, about 15 minutes. Drizzle the syrup over the bacon and return to the oven to let continue cooking. Cook until the bacon is done and crisped up, about another 5 to 6 minutes.

Heat a cast iron skillet over medium-high heat. In a bowl, combine the ground beef, worcestershire sauce, grated onion and mustard. Season with salt and pepper. Form the mixture into 4 patties. Drizzle the patties with the oil. Cook in the cast iron pan, flipping once, until a crust forms, about 7 minutes. Top with the cheese and cook another 2 minutes to melt the cheese.

Meanwhile, melt a little bit of butter in a pan over medium heat. Add the eggs and cook to your liking. Season with salt and pepper.

Toast the buns. Top with a burger patty, an egg, bacon and the bun top.