Preheat a grill (charcoal or gas) to 300°F, with the coals or flames only under one half of the grill.

Wrap the ribs in aluminum foil. Put the ribs on a sheet tray and roast for 3 hours, until just fork tender. Unwrap the ribs and allow them to rest at room temperature for 20 minutes. 3.

Place ribs on a wire rack set over a tray to dry out. Meanwhile, heat oil in a large saucepan over medium heat to 180°C (or until a cube of bread turns golden in 10 seconds).