Roast, pan fry, grill or poach. Preheat the oven to 190°C and place the chicken supreme on a baking sheet or in a roasting pan and bake for 30-40 minutes, or until the internal temperature of the chicken reaches 74°C. No mater how you cook, it's important to monitor the internal temperature of the chicken supreme with a meat thermometer to ensure it is cooked to a safe temperature and is no longer pink or raw in the middle.