Preheat oven to 450. Sprinkle the chicken breasts evenly with the salt, pepper and garlic powder and lay in a greased baking dish.Bake at 450 for 18 minutes. Meanwhile, whisk together the peach preserves, balsamic vinegar and minced garlic in a small saucepan over medium heat. After 18 minutes brush the chicken breasts with a little bit of the sauce and bake for another 3 minutes.Remove the chicken breasts from the oven and cover with tin foil to rest for 10 minutes. Continue to simmer the sauce until thick, about 5-8 minutes. When the chicken has rested, serve hot with the remaining sauce drizzled on top.Recipe and photo courtesy of De Nigris 1889