Broth:
1 yellow/white onion, cut across the equator. Do not trim the ends or remove the outer skin.
1 hunk of ginger, cut in half width wise. Do not skin.
Broil onion and ginger (cut sides up) until they are crispy/black, but not burnt.
Toast 1 pack of Old Man Que Huong Pho Bac Spice...