Man Pleasing Chicken

1/2 c. Dijon Mustard
1/4 c. maple syrup
1 T. white wine vinegar
2 T. chopped fresh rosemary

1 Package of boneless, skinless chicken breasts, halved

In small baking dish, whisk together mustard, syrup, vinegar and rosemary. Add chicken and marinate 1 hour.  Place chicken on cookie sheet.  Bake at 350 for 20 minutes.