To prepare roasted garlic: Cut head of garlic in half and drizzle with olive oil. Wrap in foil and bake at 400 degrees F (200 degrees C) for 45 minutes.
2
Reduce oven temperature to 350 degrees F (175 degrees C).
3
Peel, chop and boil potatoes until tender. Drain, then mash potatoes. Add butter, milk and roasted garlic and mix in. Set aside.