
Cognac Dijon Filet Mignon
Cognac Dijon Filet Mignon sears and roasts filets, then builds a classic pan sauce of Cognac, cream, Dijon, and tarragon.
Filet mignon is tender enough that it does not need much help from you, which is exactly why a good pan sauce earns its place. This one pairs the mild beef with Cognac, Dijon mustard, beef stock, heavy cream, shallot, and fresh tarragon—a sauce with enough sharpness and aroma to make filet interesting without covering up the reason you bought filet in the first place.
The steaks start simply with salt and pepper, sear for three minutes per side, then finish in a 425°F oven until they reach 125–135°F. Rest them for eight minutes while you make the sauce in the same skillet. Cook the shallot briefly, take the pan away from the flame before adding Cognac, then return it to the heat and reduce. Beef stock concentrates next; cream, Dijon, and tarragon finish the sauce in the final few minutes. That off-flame Cognac step is not theatrical caution. Alcohol vapor and open flame have a relationship that can become memorable very quickly. Keep the excitement on the plate, spoon the finished sauce over the rested filets, and enjoy the kind of 30-minute dinner that makes Tuesday look like it has a reservation.








