Heat the BBQ 180C/200C. Season the chicken well with crushed peppercorn and sea salt and place in a roasting tray on the grill and cook for around 30-40 minutes.

Combine the sauce ingredients in a frying pan and simmer on the grill or side burner. Continue cooking until it begins to thicken and looks glazy. Keep half sauce for coating and half for serving.

Once the chicken has cooked through slop the sauce all over and place on medium heat grill bars, that have been well-oiled. Turn-over after 5 mins and coat with more sauce, repeat after a further 5 mins.

Remove chicken from grill and slop over remaining sauce and garnish with Rocket.