When you flatten a chicken, you most likely want to grill or roast it. Flattening your chicken allows you to cook the chicken evenly, since the meat is about the same thickness all over. When grilling a flat chicken, you should stay close by so that you can move when the dripping fat cause the flames to flare. To infuse the flat chicken with flavor, you can either marinate it for a few hours before cooking or baste it repeatedly with a glaze while it grills.
Grilling
Prepare your favorite marinade in a dish. Place the flat chicken in the dish with its skin side up and wings tucked in.
Marinate the chicken for 2 hours in the refrigerator, turning it occasionally. Remove the chicken from the fridge 1 hour before cooking.
Turn on the grill to medium heat. Cover the grate with heavy-duty foil and spray with cooking spray.
Transfer the chicken from the marinade to the grill, placing it breast side down.
Grill for 10 minutes, then turn the chicken over. Keep grilling for another 35 minutes, or until a meat thermometer inserted into the deepest part of the breast reads 165 degrees Fahrenheit.
Transfer to a cutting board and cover with foil. Let the grilled chicken rest for 10 minutes before carving and serving it.
Roasting
Prepare your favorite marinade in a dish. Place the flat chicken in the dish with its skin side up and wings tucked in.
Marinate the chicken for 2 hours in the refrigerator, turning it occasionally. Remove from the fridge 1 hour before cooking.
Preheat the oven to 220 degrees Fahrenheit.
Spread out the chicken in a roasting dish and place in the oven. Cook for 50 minutes.
Remove the roasted chicken from the oven and cover with foil. Let it rest for 10 minutes before carving and serving it.