Method

• 1.
  For the glaze, place all ingredients in a pan over high heat and bring to the boil. Reduce heat to medium-high and simmer rapidly for 10 minutes or until reduced by half. Set aside to cool and thicken.
• 2.
  Preheat a chargrill pan or barbecue to high heat.
• 3.
  Prepare the squid. Cut the tubes along one side and open out. Brush seafood and lemon with oil and season.
• 4.
  Place the prawns and lemons (cut-side down) on the grill and cook, turning prawns every 1 minute and basting with glaze (do not turn lemon), for 4-5 minutes until caramelised and cooked through. Transfer to a tray and keep warm.

• 5.
  Add mackerel and cook, turning halfway and basting with glaze, for 8 minutes or until cooked through. Transfer to a tray and keep warm.
• 6.
  Add squid and cook, turning every 1 minute and basting with glaze, for 2-3 minutes until just cooked.
• 7.
  Serve seafood warm with grilled lemon.