In a medium mixing bowl, squeeze the roasted cloves of garlic out of the skin of the bulb and mash them with a fork.
Add the softened butter, olive oil, salt, pepper, and fresh herbs. Mix all of this together to form a spreadable paste. Cut the loaf of bread into 3/4-inch slices without cutting all the way through the bottom crust. This should resemble an accordion or Hasselback potato.
Using, a butter or dinner knife, spread the garlic paste evenly on both sides of each slice of bread, trying not to pull the slices apart.
Wrap the bottom and sides of the loaf of bread, leaving the top of the loaf slightly exposed so it can brown.
Place the loaf of bread on the upper rack of your oven and bake until warmed through and the top of the bread is golden brown, approximately 10 to 15 minutes.
Serve while war, allowing everyone to pull slices off the loaf.