5 pounds beef marrow or knuckle bones
2 pounds beef chuck, cut into 2 pieces
1 (3-inch) piece ginger, cut in half lengthwise and lightly bruised with the flat side of a knife, lightly charred
2 yellow onions, peeled and charred
1/4-cup fish sauce
3 ounces rock sugar, or 3 tablespoons sugar
10 whole star anise, lightly toasted in a dry pan
1 tablespoon sea salt
1 pound dried 1/16 inch wide rice sticks, soaked, cooked and drained
1/3 pound beef sirloin, slightly frozen, then sliced paper-thin across the grain