Slice off the top of the garlic bulb. 

Peel away some of the outer skin, but not too much that the bulb will start to fall apart.

Place bulbs on a piece of aluminum foil that is large enough to completely cover the garlic bulb, sealing it. 

Pour about a 1/2 tablespoon of oil on the bulb, and sprinkle with about a 1/4 teaspoon of kosher salt.

Roast in a 350º oven for about 30 minutes.