Put desired amount in center of foil
If using whole garlic cut off top to expose cloves
Toss to coat evenly in oil
Close foil around garlic and shape like a garlic bulb
Roast for 1 to 2 hours @ 300 degrees or until it can be easily smashed with fork. Note that when roasting a whole bulb it will take less time then peeled.
Garlic will be a golden brown when done
If using whole just squeeze it right out of the peel.
Smash it with side of a knife
Smash or use whole cloves. I like to smash and add it to mashed potatoes or butter.