Cognac Dijon Filet Mignon finished and ready to serve

Cognac Dijon Filet Mignon

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Cognac Dijon Filet Mignon sears and roasts filets, then builds a classic pan sauce of Cognac, cream, Dijon, and tarragon.

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This is bistro cooking, straight up: a seared filet under a silky Cognac-cream pan sauce sharpened with Dijon and perfumed with tarragon. It's the kind of dish that feels special-occasion but takes about half an hour start to finish.

The sauce builds in the same pan you seared the steaks in, so all that browned flavor gets deglazed right back in. Pull the pan off the heat before adding the Cognac, then return it — brandy and open flames don't need to meet.

Prep10 minutes
Cook20 minutes
Total30 minutes
Serves2 servings
DifficultyMedium

Ingredients

  • 2 filet mignon steaks, 7–8 ounces each
  • 1 teaspoon kosher salt
  • ½ teaspoon black pepper
  • 1 tablespoon neutral oil
  • 1 small shallot, minced
  • ¼ cup Cognac
  • ½ cup beef stock
  • ⅓ cup heavy cream
  • 1 tablespoon Dijon mustard
  • 1 teaspoon chopped fresh tarragon

Instructions

  1. 1Season the filets with salt and pepper.
  2. 2Sear in an oven-safe skillet with oil for 3 minutes per side.
  3. 3Transfer to a 425°F oven for 4–7 minutes, until 125–135°F. Rest for 8 minutes.
  4. 4Cook the shallot in the skillet for 1 minute. Remove from the flame and add the Cognac.
  5. 5Return to medium heat and simmer for 1 minute. Add the stock and reduce by half.
  6. 6Stir in the cream, Dijon, and tarragon. Simmer for 2–3 minutes and spoon over the filets.

Pro Tips

  • Take the pan off the flame before adding the Cognac, then set it back on the heat. Splashing liquor into an open flame is a genuine fire hazard.
  • Reduce the stock by half before adding cream, so the final sauce has real depth instead of tasting thin.
  • Add the tarragon at the end. Its delicate anise flavor fades if you cook it too long.

Substitutions

Cognac → brandy or dry white wine Brandy is nearly identical; white wine is lighter but still deglazes well.
fresh tarragon → ½ teaspoon dried tarragon or fresh chives Dried is more potent, so use less; chives change the flavor but keep it fresh.
filet mignon → thick-cut top sirloin or strip steak Both work with the pan sauce; adjust cook time to the cut.

Storage Instructions

Store leftover filet and sauce in the refrigerator for up to 3 days. Reheat gently over low heat with a splash of stock or cream to loosen the sauce.

Make Ahead

Filet is best cooked fresh. You can mince the shallot and measure the sauce ingredients ahead so the à la minute sauce comes together fast.

Frequently Asked Questions

Can I make Cognac Dijon Filet Mignon ahead of time?

Filet is best cooked fresh. You can mince the shallot and measure the sauce ingredients ahead so the à la minute sauce comes together fast.

How do I store leftover Cognac Dijon Filet Mignon?

Store leftover filet and sauce in the refrigerator for up to 3 days. Reheat gently over low heat with a splash of stock or cream to loosen the sauce.

Can I freeze Cognac Dijon Filet Mignon?

Cream-based pan sauces can split when frozen, so make this one fresh. Cooked filet can be frozen but loses its signature tenderness.

What should I serve with Cognac Dijon Filet Mignon?

Pommes purée or a gratin is the classic French match, with haricots verts or asparagus alongside. A glass of Burgundy makes it a proper bistro night.

Can I adjust Cognac Dijon Filet Mignon for the ingredients I actually have?

Yes. The Substitutions section on this page covers the swaps that actually hold up. Keep the sear-and-rest order the same and you have room to adjust the flavors around it.

What is the most common mistake when making Cognac Dijon Filet Mignon?

Take the pan off the flame before adding the Cognac, then set it back on the heat. Splashing liquor into an open flame is a genuine fire hazard.

How long does Cognac Dijon Filet Mignon take?

About 30 minutes from start to finish, including 20 minutes of active cooking. Most of it is hands-on, so plan to stay near the stove.

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