How to start a campfire, roast marshmallows & make s'mores. Kindling - scraps of wood, you can chop some pieces off of your log if needed with a hatchet. Newspaper - something light (cardboard works if you have to, but Dry wood - start with dry wood, once the fire is hot, you can add wood that is a little wetter. Air circulation is crucial - don't smother it. S'more (give me some more, yes please) Graham crackers, marshmallows, milk chocolate. Be sure to put out the fire completely when you are done. Even if it looks out, embers can still be burning underneath.