The cutting edge of chef's knives
South Carolina bladesmith Quintin Middleton pours everything into his hand-crafted chef's knives – elegant instruments that can cost up to $2,500 apiece. Correspondent Serena Altschul talks with Middleton about his inspirations for forging his distinctive knives, and with chef Kwame Onwuachi, who says a Middleton blade is worth the sharp cost.