If needed, bake sourdough loaf as instructed and let cool.
1 loaf sourdough bread
Preheat oven to 350 degrees.
In a small pot, melt butter over low heat.
8 tablespoons unsalted butter
Mince garlic, then add to melted butter and cook 1-2 minutes.
3 cloves garlic
Remove from heat and add herbs, if using.
2 tablespoons fresh parsley
Use a serrated bread knife to cut 1/2 inch slices almost but not all the way through the loaf both horizontally and vertically to create a crosshatch pattern.
Set the loaf on a long sheet of tin foil, then use a soup spoon to add garlic butter to the sliced area, being sure to get it all the way in and in each spot.
Stuff the loaf with cheese, getting it as deep as possible. Gently wrap the tin foil around the loaf, leaving air space on top.
Bake at 350 degrees for 20-25 minutes on the grates. Optional: carefully open up the foil for the last 5-10 minutes to get an extra crispy crust on top.
Let cool just enough to remove from the foil, then serve immediately.