Contributed to the echo by: Ellen Cleary Marinated Chicken Salt chicken. Combine oil, vinegar, onion powder, garlic powder, pepper, marjoram, rosemary, and salt. Place chicken in mixture and marinate in the refrigerator overnight. Turn chicken a couple of times while marinating. Cook on the grill or in the oven (I use 350 degrees about 1 hour) dipping chicken once or twice in the marinade as it cooks. It's even better the next day after it's cooled in the refrigerator.