Louisette Bertholle was a French chef and co-author of the famous cookbook "Mastering the Art of French Cooking," alongside Julia Child and Simca Beck. Born in 1919, she played a significant role in introducing French cuisine to American home cooks. Bertholle was known for her expertise in traditional French cooking techniques. Her contributions helped popularize French culinary practices in the United States, making gourmet cooking more accessible to the average person. She continued to influence the culinary world until her passing in 2019.