Typically, food is marinated before broiling. Most cooks go light on the fat, both to make the food healthier and to reduce the amount of smoke produced. Marinades which are high in sugar can also produce a great deal of smoke, and may form unappetizing bits of charred material.ypically, food is marinated before broiling. Most cooks go light on the fat, both to make the food healthier and to reduce the amount of smoke produced. Marinades which are high in sugar can also produce a great deal of smoke, and may form unappetizing bits of charred material.