Zesty Grilled Chicken

6 TBS white vinegar
3 TBS oil
2 TBS ketchup
2 tsp dried parsley flakes
1 1/2 tsp garlic salt
1/2 tsp paprika
1/4 tsp dried oregano
1/8 tsp hot pepper sauce
1/8 tsp Worcestershire sauce
1 bay leaf
4 boneless chicken breast halves

In a large resealabel plastic bag, combine the first 10 ingredients; add chicken. Seal bag and turn to coat; refrigerate for 4-8 hours, turning occasionally.
Drain and discard marinade. Grill chicken.