Preheat your grill.

Make the brine by combining the vinegar, salt and sugar until dissolved. Pour the brine over the chicken until covered and let the chicken sit in the brine, skin side down, for 10 minutes.

Using an old rag dipped in cooking oil, rub your grill grate with cooking oil to prevent sticking.

Take the chicken from the brine and put it straight on the grill, skin side down first. Flip over at 5 minutes, cook until almost done, and flip to finish for another 5 minutes with the skin side down.