Chilled Peach and Mango Soup

From the day the first cling peaches from South Carolina and Georgia show up in Southern markets and on farm stands till the last freestone Elbertas and Georgia Belles disappear in September, cooks utilize the luscious fruit in everything from elegant soups to cobblers to preserves. Traditional chilled peach soup has always been considered an ideal starter to a light, casual summer lunch, but when, a couple of years ago, I decided to toss the flesh of a ripe mango into the blender with the