1    Oven cooking bag, turkey
Size
1 tb Flour
Vegetable oil
2    Sliced celery stalks
1    Sliced med onion
16    20 lb thawed turkey

Preheat oven to 350. Shake flour in bag; place in large roasting pan
at least 2″ deep. Add celery & onions to bag. Remove neck & giblets;
rinse turkey; pat dry. Lightly stuff turkey, if desired. Brush turkey
with oil. Place turkey in bag. Close bag with nylon tie; cut six 1/2″
slits in top. Insert meat thermometer through slit in bag into
thickest part of inner thigh, not touching bone. Bake until
thermometer reads 180 (2 1/2 or 3 hours). Add 1/2 hour for stuffed
turkey. Let stand in bag 15 minutes.