Garlic-Marinated Chicken

This is the first recipe I've found for chicken breasts on the grill that I really like. The chicken is very moist and garlicky. I actually had two pounds of breasts so I doubled the recipe and marinated it all, then froze 1/2 of the marinated chicken with some of the marinade. Thaw it in the fridge overnight before grilling. -Julie

3 garlic cloves, minced
1/8 cup white-wine vinegar
1 tablespoon fresh thyme leaves, chopped, plus sprigs for garnish, if desired
1 tsp coarse salt
1/2 tsp ground pepper
1 pound chicken cutlets (or chicken breasts cut into thirds)

Heat grill to high; lightly oil grates.
Meanwhile, make marinade: In a large baking dish, whisk together oil, garlic, vinegar, thyme, salt, and pepper. Add chicken; turn several times to coat. Let marinate at room temperature 10 minutes and up to 30 minutes.
Lift chicken from marinade and grill until browned and cooked through, 2 to 3 minutes per side. Remove from grill.