I took a week long class with Fr. Damian from Holy Transfiguration Monastery. He taught me and several other students how to create this icon from start to finish. The icon class was held at St. Angela Merici in Brea Ca. Most of the process was traditional using gessoed boards, egg tempera, and ground pigments.
Fr. Damian is an excellent, enthusiastic teacher. I believe he travels quite a bit teaching iconography and I would highly recommend his class if you ever get a chance.