Grilled Marinated Chicken Breasts - cooking recipe

Ingredients

3/4 c. fresh lemon juice
3/4 c. vegetable oil
1/4 c. minced onion
1 1/2 tsp. salt
1/4 tsp. thyme
2 Tbsp. green peppercorn mustard
12 skinless boneless chicken breast halves

Preparation

In a medium bowl whisk together the lemon juice, oil, onion, salt, thyme and mustard.
With a sharp knife, score both sides of each breast in a crosshatch pattern, about 1/8-inch deep.
Pour 1/3 of the marinade into a shallow glass bowl.
Add half the chicken in a single layer and cover with another third of the marinade.
Put in the remaining breasts and cover with remaining marinade.
Cover and refrigerate 3 hours.
Bring chicken to room temperature.
Preheat broiler and grill chicken 3 minutes each side.