Preheat grill to medium-high (or oven to 450 degrees).
With the Good Cook Santoku or bread knife, slice through the top 3/4 of the sourdough bread, creating a checkerboard pattern.
In a small bowl, mix together butter, bacon, dill and salt.
Spread the butter mixture between each of the checkerboard cuts in the bread.
Slide cheese between the slits in the bread.
Cover loosely with aluminum foil and grill until cheese is melted, about 20 minutes. Or bake for 15-20 minutes, until cheese is melted.⏱ 20 min
Serve immediately and enjoy!