Is jus de cuisson de bœuf vegan?

Jus de cuisson de bœuf, or beef cooking juice, is a rich and flavorful liquid that results from the natural juices of cooked beef. It's typically made by simmering beef bones, along with vegetables and herbs, in water for several hours. The resulting liquid is strained and used as a base for sauces, gravies, and soups. This ingredient adds depth and complexity to dishes, providing a savory umami flavor that's both comforting and satisfying. Its versatility makes it an essential ingredient in many traditional French recipes, and it's often used to elevate simple dishes to new heights of taste and sophistication.