Try this homemade Roast Filet of Beef with Cornichon Mustard Sauce recipe the whole family will love. Made with filet beef tenderloin, olive oil, butter…
This Roast Filet of Beef with Cornichon Mustard Sauce relies on simple, everyday ingredients such as olive oil, butter, softened, dijon mustard and shallots, chopped. It comes together quickly and makes 4 servings, at about 1489 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026