Nearly thirty years ago, chefs Riad Nasr and Lee Hanson met in the kitchen of Daniel Boulud’s Restaurant Boulud. Since then, their names have been synonymous with superlative French bistro dining in New York City. After years helming the kitchen at the iconic Balthazar, they opened up their own restaurant, Frenchette, to great acclaim. Their latest project, Le Rock, a beautifully-designed 4,000-square-foot restaurant, is part of an ambitious re-imagining of Rockefeller Center. Martha, a fan of theirs from the beginning, catches up with her old friends to hear how these chefs are continuing to interpret and reinvent classic French dishes in their new dining room.