Preheat oven to 425 degrees F. Place foil on rimmed baking sheet and set aside.

Make cuts, about 1 inch apart, in the bread but don't cut through bottom. Combine all remaining ingredients. Spread half of the butter mixture between the bread slices. Spread the remaining mixture over the top of the bread.

Place bread on foil on a rimmed baking sheet. Cover loosely with additional foil. Bake at 425 degrees F. for 20-30 minutes. For the last 5 minutes, remove foil covering bread to allow it to brown. Serve warm.