Hey Dien: Not work! Actually once the peanut has been roasted all of the water in the peanut is gone. Thus nothing really left to cook and to absorb the water from the boil. So you need some fresh peanuts or green (out of the ground) peanuts. BTW I have seen people take roasted peanuts and fry them. Basically they are frying a "done" peanut. I don't care for them but they are in all the stores now.

You CAN fry a fresh peanut (use peanut oil ), which isn't really bad, but like you said, a boiled peanut is hard to BEAT! Kinda like lays potato chips, you just can't have one.

later..
Pappy