Maple Mustard Chicken

1/2 cup Dijon Mustard (or substitute honey or stone-ground mustard)
1/4 cup maple syrup
1 clove garlic, minced
1 Tablespoon rice wine vinegar
6 boneless, skinless chicken breasts
black pepper, to taste

1. Preheat oven or barbecue to 450 degrees (using indirect heat for first half of grill time).
2. Combine mustard, syrup, garlic, and vinegar.
3. Place chicken in foil lined baking dish or foil baking pan if grilling.
4. Pour mustard sauce over chicken and season with black pepper to taste.
6. Bake or grill for 40 minutes or until cooked through. Serve with brown rice and veggies.