author
A late-19th-century French culinary writer, this author is known for a detailed guide to cuisine maigre—the art of elegant meatless cooking. The book brings together soups, sauces, vegetable dishes, and sweets in a practical style meant for serious cooks.

by Auguste Hélie
Little biographical information about Auguste Hélie could be confirmed from the sources I found. The clearest documented detail is that he was identified by the Bibliothèque nationale de France as a cook, and that he wrote Traité général de la cuisine maigre, published in 1897 with a preface by Chatillon-Plessis.
That work focuses on refined "lean" cooking: potages, entrées, vegetable entremets, sauces, sweet dishes, and hors d'oeuvre. It reflects a tradition of French cooking designed for days when meat was avoided, while still aiming for variety, skill, and richness of flavor.
Because reliable personal details appear to be scarce, Hélie is best known today through this surviving cookbook rather than through a well-documented public life. For readers interested in historic food writing, his work offers a useful glimpse into French culinary practice at the end of the nineteenth century.