Grilled Chicken with Peach Chipotle Sauce

Name: Grilled Chicken with Peach Chipotle Sauce
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: Latin American, Mexican, American
Ingredients: 4 peaches, peeled and sliced into quarters; 2 stalks green onion, thinly sliced; 1 canned chipotle pepper in adobo, plus 2 tsp sauce from the can; 1/2 cup freshly chopped cilantro; 1 1/2 tsp salt, divided; 1 1/2 tsp ground black pepper, divided; 1/2 tsp cayenne pepper; 4 boneless, skinless chicken breasts