The apple is one of the most iconic fruits, and there is a vast world of varieties that goes beyond the common grocery store offerings of Red Delicious and Granny Smith. With names like American Beauty, Carter's Blue, and Fallawater, and flavors ranging from sweet to tart, this treasure trove of unique apples is ripe for discovery. There is no better guide through this tasty world than Tom Burford, whose family has grown apples in the Blue...