Arrange a rack in the center of the oven; pre-heat to 375°F.
Set a wire rack inside a rimmed baking sheet lined with foil. Place the bacon slices on a cutting board.
In a small bowl, mix together the brown sugar and 2 tablespoons maple syrup. Press the brown sugar mixture onto one side of the bacon. Transfer the bacon to the wire rack, brown-sugar side up. Bake until crispy, about 30 minutes.
In a medium size bowl, combine the ground beef, ground pork and seasonings. Form into four patties, making each one thinner at the center and thicker at the edges for even cooking.
In a skillet or griddle pan, heat the oil over medium-high. Cook the patties, turning once, 8-10 minutes for medium doneness. Top each patty with one slice of cheese during the last minute or two of cooking. Transfer the patties to a plate then cook the eggs over-easy.
In a small bowl, mix the butter, 1 tablespoon maple syrup and mustard. Spread the maple-mustard butter on the English muffins.
Divide the patties among the muffin bottoms. Top with the bacon, eggs and muffin tops.