Recipe

Steak Diane

Pan-seared steak medallions with a classic brandy mushroom pan sauce, Dijon, shallots, and a buttery finish.

By Matt Campbell

•

4.8

Steak medallions in a cast iron skillet, coated in a glossy brandy mushroom pan sauce with sliced mushrooms and chopped parsley

Steak Diane is what I make when I want steak night to feel like a white tablecloth situation, but I also want to be in sweatpants and done before the dishwasher finishes humming. You get pan-seared steak with crisp edges, then a quick, glossy sauce built right in the same skillet with shallots, mushrooms, Dijon, and a splash of brandy or cognac. It tastes like you planned ahead. You did not.

The trick is timing. We sear first, rest the steak, then make the sauce fast so your beef stays juicy and does not overcook while you chase flavor. If you want to flambé, I will walk you through it. If you do not, you will still get that classic Diane vibe with zero drama.

A plated Steak Diane dinner with medallion steaks topped with mushroom sauce, mashed potatoes, and watercress on a white plate

Why It Works

Fast but fancy: Searing plus a pan sauce means big payoff in about 30 minutes.
Juicy steak: Resting the medallions while you build the sauce prevents overcooking.
Flavor layering: Mushrooms and shallots brown first, Dijon adds bite, brandy adds depth, and cream or butter makes it silky.
Flexible: Works with filet medallions, sirloin medallions, or strip steak cut into portions.

Pairs Well With

Storage Tips

Store: Cool promptly, then keep steak and sauce together in an airtight container for up to 3 days in the refrigerator.

Reheat (best method): Warm gently in a skillet over low heat with a splash of water or broth to loosen the sauce. Pull the steak as soon as it is warmed through. High heat will tighten the meat and can split the sauce.

Microwave option: Use 50 percent power in short bursts, stirring the sauce between bursts.

Freeze: I do not love freezing cream-based pan sauces because they can separate. If you must, freeze up to 1 month and rewarm slowly while whisking.

Common Questions

What cut of steak is best for Steak Diane?

Classic Steak Diane is often made with filet mignon medallions because they cook quickly and stay tender. You can also use top sirloin (more affordable) or strip steak cut into portions. Aim for pieces about 1 to 1 1/2 inches thick so you can get a good sear without overcooking.

If using strip steak: cut into 4 portions and, if needed, lightly pound or trim so the pieces are an even thickness. Cook to temperature, not the clock.

Do I have to flambé the brandy?

Nope. Flambé looks cool and can add a little extra aroma. It also burns off some alcohol quickly, but it does not magically erase it all. The sauce is still delicious if you simply simmer the brandy for 30 to 60 seconds.

What can I use instead of brandy or cognac?

Brandy or cognac is the classic move. If you are out, use dry sherry or marsala for a similar warm depth. In a pinch, you can use beef broth with a tiny splash of apple cider vinegar for brightness, but it will taste less traditional.

How do I keep the steak from overcooking while I make the sauce?

Two things: rest it off the heat (on a plate, tented loosely with foil) and make the sauce in the same pan quickly. You will add the steak back for only 30 seconds to 1 minute at the end, just to coat and warm.

My sauce broke or looks greasy. Can I fix it?

Yes. Take the pan off heat and whisk in 1 to 2 tablespoons cold butter to bring it back together. If it is too thick, add a splash of broth. If it is too thin, simmer for another minute or two before finishing with butter or cream.

What internal temp should I aim for?

Think in terms of pull temperature (what you hit in the pan) plus carryover while resting. Pull at about 120 to 125 F for medium-rare, then rest to roughly 130 to 135 F. Pull at 130 F for medium, rest to around 135 to 140 F. If you like rare, pull around 115 F. For medium-well, pull around 140 to 145 F and know the medallions will tighten up a bit.

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

Large stainless steel or cast iron skillet (12-inch is ideal)
Tongs
Instant-read thermometer (optional but helpful)
Wooden spoon or spatula for scraping fond
Measuring spoons

I learned to love recipes like Steak Diane for the same reason I love a good team on a line: everyone has a job, and when the timing clicks, it feels like magic. Sear the steak, let it rest, then the pan turns into a sauce factory with mushrooms soaking up flavor and that little Dijon kick that makes you keep going back for one more bite. It is the kind of dinner that makes an ordinary weeknight feel like you did something slightly reckless in a good way.

Steak Diane

(4.8 Reviews)

Prep Time 10 minutes

Cook Time 15 minutes

Total Time 25 minutes

Servings 4

Ingredients

Steak

4 filet mignon medallions (about 5 to 6 oz each), or sirloin medallions, 1 to 1 1/2 inches thick
1 1/4 tsp kosher salt, plus more to taste
1/2 tsp freshly ground black pepper
1 tbsp neutral oil (avocado, canola, or grapeseed)
2 tbsp unsalted butter, divided, plus 1 to 2 tbsp cold butter for finishing (optional but highly recommended if skipping cream)

Diane Sauce

8 oz cremini mushrooms, sliced
1 small shallot, finely minced (about 2 tbsp)
2 cloves garlic, minced
1 1/2 tbsp Dijon mustard
1 tbsp Worcestershire sauce
1/3 cup brandy or cognac
1/2 cup low-sodium beef broth
1/4 cup heavy cream (optional, for a classic creamy finish)
1 tbsp lemon juice (about 1/2 lemon), to brighten at the end
2 tbsp chopped parsley

Optional garnish

Watercress or arugula, for serving

Instructions

Take the chill off the steak. Pat the steaks very dry. Season both sides with salt and pepper. Let them sit out for 10 minutes while you prep mushrooms, shallot, and garlic.
Sear the steaks. Heat a large skillet over medium-high heat until the oil shimmers. Add oil and 1 tablespoon butter. When the butter foams, add the steaks (do not crowd the pan). Sear until deeply browned, about 2 to 4 minutes per side depending on thickness and heat.
Cook to temperature: pull at 120 to 125 F for medium-rare (it will rest up to about 130 to 135 F), or pull at 130 F for medium (rest to about 135 to 140 F).
Rest. Transfer steaks to a plate and tent loosely with foil. Do not wipe the pan. That browned goodness is your sauce starter. If the fond looks like it is getting very dark or the pan is smoking aggressively, lower the heat before you move on.
Brown the mushrooms. Reduce heat to medium. Add the remaining 1 tablespoon butter, then mushrooms. Cook, stirring only occasionally, until they release moisture and get some real color, about 5 to 8 minutes.
Build the aromatics. Add shallot and cook 1 minute. Add garlic and cook 30 seconds, just until fragrant.
Add mustard and Worcestershire. Stir in Dijon and Worcestershire to coat the mushrooms. Cook 30 seconds to take the raw edge off.
Deglaze with brandy. Turn heat to medium-high and add brandy. Scrape up the browned bits from the bottom of the pan.
Optional flambé: Remove the pan from the burner, then carefully ignite the fumes with a long lighter. Return to heat and let flames die out naturally. Never pour alcohol from the bottle near a flame.
Reduce, then add broth. Let the brandy simmer for 30 to 60 seconds, then add beef broth. Simmer until lightly thickened and glossy enough to coat the back of a spoon, about 2 to 5 minutes depending on your pan and heat.
Finish the sauce. Lower heat to medium-low. Stir in heavy cream (if using) and simmer 1 minute. Add lemon juice. Taste and adjust salt and pepper. If you are skipping cream, take the pan off heat and swirl in 1 to 2 tablespoons cold butter for extra gloss and that classic steakhouse feel.
Return steaks to the pan. Add steaks and any juices back to the skillet for 30 seconds to 1 minute, just to warm and coat. Sprinkle parsley over top.
Serve. Spoon extra sauce over each steak. I love this with parsnip mash or buttered noodles and a peppery handful of watercress on the side.

Sliced mushrooms and shallots in a stainless steel skillet as brandy is poured in to deglaze, with steam rising

Nutrition information is estimated.

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