1 c. salad oil
3/4 c. soy sauce
1/2 c. lemon juice
1/4 c. Worcestershire sauce
1/4 c. French's mustard
1 tsp. garlic powder
1 tsp. black pepper
1 tsp. liquid smoke

Marinade boneless, skinless chicken breast several hours and put on grill (gas or charcoal) medium to low heat 3 to 4 minutes per side depending on thickness.