1 tablespoon sesame oil
1 tablespoon julienned ginger
1 cup Chinese cooking wine or dry sherry
1/4 cup soy sauce
1/4 cup hoisin sauce
2 tablespoons sugar
2 star anise
2 pork tenderloins, trimmed and halved crosswise
Steamed rice, for serving (optional)
Steamed baby bok choy, for serving (optional)