Preheat oven to broil or grill.

Pound chicken breasts to 1/4-inch (1/2-centimeter) thickness in a large resealable plastic bag.

Combine marinade ingredients in a bowl.

Add to the plastic bag and let sit for 15 minutes or up to four hours.

Broil or grill chicken for four to five minutes per side, until cooked through.

To prepare salsa, mix all the ingredients in a bowl.

Let flavors meld for about 15 minutes.

Serve chicken warm or room temperature with salsa.