I have been anxiously awaiting sugaring this weekend. I looked forward to building the fire, gathering the sap, the smell of the smoke, being outside near the fire (for hours), etc. I had only planned to fill the pan once (11 gallons) and boil all the way to syrup, which requires a transfer to the stove indoors when we get close. I anticipated a whopping 1 quart of syrup for the effort. We ended up with almost a quart and a half.
Mr. Field and Stream showed up to help. He always seems interested when I am doing stuff outside ... my outdoor activities intrigue him as most are not necessarily hunting or fishing based. He helped a bit last year and has obviously been waiting to come back this year. He helped gather standing dead wood for the fire and tending it. While we had time, I took the opportunity to show him how to make a bowl using a coal. The bowl will end up being a serving bowl for salad or something ... it is going to be 10" in diameter and 10" deep or so. It is going to take a while, but I hope also to try to rock boil some sap in this large applewood bowl.
Backyard Sugarin': A Complete How-To Guide, Third Edition. If you are interested in coal burning bowls, I recommend, again, Tom Brown's Field Guide to Living with the Earth. These contain all of the information you need for sugaring or making bowls using coal burning.