Chicken Tomato Skewers

1 1/2 lb. boneless skinless chicken breasts cut into 3/4 inch cubes
3/4 c. buttermilk
1 tbsp red wine vinegar
5 garlic cloves minced
1 tbsp chopped fresh basil
1/4 tsp. black pepper
1 pint grape or cherry tomatoes
1 ed onion cut into medium cubes

Place chicken pieces in a bowl. Add milk, vinegar, garlic, basil, and pepper. Cover w/ plastic wrap and chill for 30 min.- 6 hours.

Heat grill racks, and brush with oil.

Thread chicken , tomatoes, and onion on 8-10 inch skewers. (If using wooden skewers make sure to soak in water first, to prevent burning).

Sprinkle w/ 1/4 tsp kosher salt, then grill covered 5- 10 min. , turning once, until chicken is cooked trough.