kamman's time in boston triggered the notorious feud between kamman and julia child, in which kamman challenged child's claims of being a "french chef." kamman undiplomatically pointed out that child was neither french nor a 'chef,' but was an american cooking teacher instead. according to kamman, "[w]hen you try to teach a cuisine that is not your own, there is always one dimension missing." many have attributed kamman's critique to professional jealousy based on child's immense popularity with american audiences and the success of her "french chef" brand. child returned the animosity, refusing to speak kamman's name publicly and instead called her "that woman." child refused to dine at chez la mère madeleine, although the restaurant received five stars from "the boston globe", four stars from the "mobil guide", and accolades from french chef paul bocuse.