Sweet Sour Chicken

1/4 cup cider vinegar
3 tablespoons whole grain mustard
3 cloves garlic, peeled and minced
1 lime, juiced
1/2 lemon, juiced
1/2 cup brown sugar
1 1/2 teaspoons salt
6 tablespoons olive oil
ground black pepper
6 boneless skinless chicken breast halves

Directions:

1 In a large, non-reactive container, whisk together ingredients beginning with cider vinegar through salt.
2 Then whisk in olive oil and pepper.
3 Place chicken in the mixture.
4 Cover and marinate chicken in the fridge 8 hours or overnight.
5 Remove chicken from marinade just before you turn on your grill or broiler to let come up a few degrees.
6 Discard marinade.
7 Lightly oil your grill or broiler pan.
8 Grill or broil about 10 minutes per side.