Peel off all the loose outside leaves of the garlic head. Than cut off the top of each head of garlic to expose the top parts of the garlic cloves.
You may leave the head of garlic together or pull apart all the individual cloves, It takes a little less time to roast if you pull the cloves apart. Place garlic head onto a small roasting pan, drizzle with olive oil and cover garlic head with another small roasting pan like a remekin dish, this worked the best for me.
Place in oven and roast for 30 minutes. After 30 minutes check the garlic, if it is completely soft and mushy it's done. Otherwise roast it unitil it's completely soft.
Next you have two options to get the cloves completely out of the peels. I personally like to peel off the peels verses squeezing it out of the peels. Squeezing the pulp out of the peels seems to always make more of a mess for me.