Step-by-step method for Grilled Mackerel with Sweet Soy Glaze
Preheat grill to medium-high heat, ensuring grill grates are clean and lightly greased with butter.
Rinse mackerel fillets under cold water and pat dry with paper towels.
Place fillets skin side down on a tray; brush both sides with extra-virgin olive oil.
Zest one lime over the fillets and squeeze half the lime juice evenly across them.
Set fillets aside at room temperature while preparing the glaze.
In a small saucepan, combine soy sauce, sliced red chilli, lime juice, grated ginger, and muscovado sugar.
Bring saucepan mixture to a gentle simmer over low heat, stirring occasionally, until sugar is dissolved and sauce is slightly thickened (about 3–4 minutes).
Remove glaze from heat and allow to cool slightly.
Place mackerel fillets skin side down on the preheated grill.
Grill for 3–4 minutes until the skin is crisp and fish is opaque halfway up.
Carefully flip fillets and immediately brush generously with the sweet soy glaze.
Grill for an additional 1–2 minutes until just cooked through, then remove from heat.
Steam baby bok choi separately until just wilted and tender.
Arrange steamed bok choi on serving plates as a base, placing grilled mackerel fillets on top, skin side up.