I've just checked for some recipes online on how to make flavored (in particular, hot and spicy) peanuts. It seems that in every one of these recipes, there has to be some kind of roasting procedure (coating with oil, powdering and then oven-roast), or cooking them, in order to get the powder to "stick" to the nuts.
What I'm wondering is which two of these methods will yield better results, and whether a food dehydrator (I got the excalibur ones) can be used to "dry" these nuts.
Perhaps it's possible to get the flavor to stick some other, easier and less messier way?
edit -- another question : is the oil necessary for flavoring them? I mean, nuts are oily naturally, so would heating them in the pan and then putting the chili/garlic powder or parmesan straight after be good enough?