Should it be called the Holy Trinity? Why no butter? What is a celery vase? Those questions and more are answered in the following videos.&#32;&#32;Food historian and cooking instructor, Poppy Tooker and the matriarch of Creol... more >Should it be called the Holy Trinity? Why no butter? What is a celery vase? Those questions and more are answered in the following videos. Food historian and cooking instructor, Poppy Tooker and the matriarch of Creole cooking, Leah Chase discuss how to make a proper roux along with other panelist Marcelle Bienvenu and Michaela York before a room full of women chefs in New Orleans. < less