This is a great way to preserve garlic. Take about an 8 inch square aluminum foil and spray with a vegetable or olive oil spray. Place a whole head of garlic inside the sprayed foil. Gather the ends together and twist to seal. Roast in a 350 oven for about an hour. Store in Freezer bags in your refrigerator crisper for several weeks.
When ready to use, take out of the foil and cut in half. Squeeze garlic from the head. Great for just about anything from garlic mashed potatoes, garlic bread, a spread on grilled bread or crackers, or a wine reduction sauce. The roasting adds a mellow flavor to the garlic and takes away the harsh "bite."