Preheat oven to 350°.
Combine first 7 ingredients in a small bowl.
Remove and discard giblets and necks from hens. Rinse hens under cold water; pat dry. Place hens in an 11 x 7-inch baking dish. Pour marinade evenly under skin and inside of hens. Cover and chill 4 hours. Drain; discard marinade.
Working with 1 hen at a time, tie ends of legs together with string. Place hens, meaty side up, on a broiler pan coated with cooking spray. Lift wing tips up and over back; tuck under hen. Insert a meat thermometer into meaty part of a thigh, making sure not to touch bone. Bake at 350° for 1 hour and 25 minutes or until thermometer registers 170°, basting occasionally. Let stand 5 minutes. Remove skin and discard.