Bone turkey thighs, leaving skins intact; place in large plastic bag. Combine remaining ingredients; pour over turkey. Press air out of bag, tie top securely. Refrigerate overnight; turn bag over occasionally. Place turkey on grill about 6 inches from moderate-hot coals. Cook 45 minutes, or until meat thermometer inserted into thickest part registers 180 F. Turn pieces over frequently.
Reprinted with the permission of Kikkoman International Inc.