said to date from Medieval times and simply is as follows:
Into a bank of fairly hard packed snow, poke the end of a broomstick down 6
or 8 inches, remove and You are left with a hole. Insert wick and fill with
melted wax. The wax hardens very quickly being outdoors in Winter.
Remove snow from around the snow candle and You will discover the most
wondrous candle as the was tends to migrate into the surrounding snow
crystals abit giving it a most unique finish. This works very well! :)