I'm really highly embarrassed to ask this. We've been car camping numerous times and cook using a campfire and basic camp stove. We will be camping for a several days both in GNP and YS and since we're flying- we've reduced/minimized our gear. We will have an MSR whisperlite and the campfire to cook.
I was looking at things/ways to cook on the fire (besides hot dogs) and I've never really done the aluminum foil thing b/c we never seem to have a decent supply of ash. Most websites say put the aluminum foil not directly on the fire, but in white hot coals. Embarrassing question in 3....2.....1..... Do they mean charcoal? Like Kingsford? Can you or do you put charcoal in a campfire pit? It has just never crossed my mind to use anything but wood.