"Everyone who has a kitchen longs for an electric stand mixer," writes Jamee Ruth in Mix It Up . "It is a sought-after icon -- a trophy that says, 'I'm a cook.'" But like a lot of icons, it's often more awesome than user-friendly. With 13 attachments available, many cooks confine themselves to mixing up cookie batters with the flat beater and calling it a day. Jamee Ruth, on the other hand, calls her mixer "the costar of my kitchen," and here she's...