01 -
Preheat a large skillet over medium heat, or an air fryer to 188°C (370°F). Cook the bacon in the skillet until it is nearly done. Brush the bacon with maple syrup and continue to cook for an additional 2 minutes, allowing it to become crispy and caramelized. Remove the finished maple bacon from the skillet and set aside.
02 -
In a medium mixing bowl, thoroughly combine the grated sharp cheddar, smoked applewood, and mozzarella cheeses.
03 -
Generously spread the softened butter onto one side of each slice of sourdough bread. Lay two of the buttered bread slices, buttered-side down, on your work surface. Evenly distribute the prepared cheese mixture, then layer with the crumbled or whole slices of maple bacon. If desired, add a thin smear of Dijon mustard. Top with the remaining bread slices, buttered-side up.
04 -
Carefully place the assembled sandwiches into the preheated skillet. Cook for 3-4 minutes per side, applying gentle pressure with a spatula, until the bread achieves a golden-brown crust and the cheese is thoroughly melted. If utilizing an air fryer, cook for 3-4 minutes per side at 188°C (370°F), ensuring to flip the sandwiches halfway through.
05 -
Remove the grilled sandwiches from the heat and allow them to rest for 2 minutes before slicing and serving immediately.