Ruth Rogers: 'You can tell a chefâs skill from the way they make a pasta pomodoro'. Rogers is chef-owner of the River CafÃ© in London. She co-founded the restaurant with the late Rose Gray, with whom she also wrote books (the million-selling River CafÃ© cookbooks) and shared a Michelin star. Although her protÃ©gÃ©s included Hugh Fearnley-Whittingstall and Jamie Oliver, Rogers is not a trained chef herself.