Salmon with Sweet-Spicy Hoisin Glaze Recipe

1/4 cup hoisin sauce

2 tablespoons light soy sauce

2 teaspoons rice vinegar

1/2 teaspoon ground ginger

1/4 teaspoon dried chili flakes

5 pieces salmon fillets, sliced into 1-inch-thick pieces

1 teaspoon toasted sesame seeds

steamed rice, or blanched asparagus (to serve), optional