Keith's "Darn Good" Chicken Marinade

(recipe good for up to 10 lbs. of meat -- approx. 30 boneless, skinless chicken breasts)
(1) Pint Soy Sauce
(1) quart 7-up
(1) T. Horseradish
(1) T Garlic Powder
(1) Pint cooking oil

1) Place defrosted chicken in large tupperware bowl
2) In separate bowl, mix marinade ingredients until fully assimilated)
3) Pour marinade into chicken-laden bowl, place lid on tightly & refridgrate for entire marination process
4) Marinate chicken for 12 hours - carefully shake bowl every hour (make sure lid is on and on good!