
Steak Diane has always stood out as a crowd-pleaser when I want to impress with little fuss. Each bite delivers tender steak topped with a rich mushroom sauce that never fails to get rave reviews at my table.
I first tried this at a dinner party and was amazed at how accessible the flavors were the sauce instantly elevates a basic steak night into something memorable
Ingredients
- Beef tenderloin medallions: This classic cut is buttery and cooks quickly Choose pieces that are bright red and have minimal connective tissue
- Salt: Essential to bring out the natural flavors Use kosher or flaky salt for even seasoning
- Mushrooms: Brown cremini or white button both work They add earthiness and soak up the sauce beautifully Go for firm dry mushrooms with no slimy spots
- Butter: Adds richness and helps sauté both steak and vegetables Choose unsalted for the best control over saltiness
- Shallots: They lend a gentle sweetness and subtle bite Choose small firm shallots with no sprouting
- Cognac or brandy: Lifts and deepens the sauce Flavor is more mellow than whiskey and adds elegance Pick a bottle you would enjoy sipping
- Beef broth: This forms the backbone of the sauce Go for low sodium so you can adjust the seasoning at the end
- Worcestershire sauce: Brings savory umami flavor Look for brands without too much added sugar
- Dijon mustard: For tang Choose a smooth and spicy Dijon for best results
- Tomato paste: Gives the sauce body and a touch of acidity Grab a tube or can in small amounts to avoid waste
- Heavy cream: Finishes the sauce rounded and smooth Find one with the highest fat content you can for silkiness
- Black pepper: Adds warmth and balances rich flavors Use freshly ground for maximum flavor
- Flat-leaf parsley: A sprinkle adds freshness and color Select bright green leaves without wilting
Step-by-Step Instructions
- Season the Steak:
- Generously sprinkle both sides of your steaks with salt Set them on a plate and let them rest at room temperature for fifteen to thirty minutes This helps flavors sink in and ensures even cooking
- Mix the Sauce Base:
- In a small bowl combine beef broth Worcestershire sauce Dijon mustard and tomato paste Whisk until fully blended and smooth Set this aside for later
- Sear the Steaks:
- Heat two tablespoons of butter in a large skillet over medium high Once the butter foams pat the steaks dry and place them in the pan Sear for about one to four minutes on each side depending on your preferred doneness Use an instant thermometer or your own touch to check temperature
- Rest the Steak:
- Transfer steaks to a cutting board Tent loosely with foil so they stay hot and juicy while you make the sauce
- Sauté the Mushrooms:
- Melt the remaining butter in your skillet and add the sliced mushrooms Turn the heat up to high and cook them for three to five minutes stirring until browned and they give off most of their liquid Scoop mushrooms from the skillet and set aside
- Cook the Shallots:
- Keep the same pan on medium high Add the minced shallots and stir for two minutes until soft and fragrant This builds the base layer of your sauce
- Deglaze the Pan:
- Pour the cognac or brandy into the pan Scrape up the sticky browned bits on the bottom with a wooden spoon until they blend into the bubbling liquid Let this simmer so the alcohol nearly cooks away
- Finish the Sauce:
- Return mushrooms to the skillet and pour in your broth mixture Stir and bring the sauce to a gentle boil Cook until it thickens just a bit usually two to three minutes
- Add the Cream:
- Lower the heat and stir in the heavy cream Let this simmer for two minutes so the sauce melds together perfectly
- Season and Serve:
- Taste the sauce Adjust with more salt or pepper as you like Place steaks on plates Spoon the warm creamy mushroom sauce over top Finish with fresh parsley and serve right away

One of my favorite moments was making this for my grandmother she always said the sauce reminded her of her favorite restaurant in New York I love how adding fresh parsley at the end brightens up the whole plate
Storage Tips
Steak Diane is best served right after cooking but leftovers can be kept in the fridge for up to two days Store steak and sauce separately if possible Warm gently over low heat to avoid drying out the steak If the sauce thickens in the fridge just splash in a spoonful of water or broth when reheating to loosen it up
Ingredient Substitutions
If you cannot find beef tenderloin look for sirloin tips or even boneless ribeye for similar tenderness You can swap crimini or button mushrooms for portobello or shiitake to change up the flavor Cognac and brandy are interchangeable So if neither is handy try dry sherry for a different but still delicious note
Serving Suggestions
I love pairing this dish with buttery mashed potatoes or crisp roasted potatoes to soak up that silky sauce A pile of garlicky green beans or steamed asparagus rounds out the plate If hosting pass extra sauce at the table so everyone can drizzle more to their taste

Cultural or Historical Context
Steak Diane became popular in mid-century American restaurants inspired by French tableside flambéed dishes It is a celebration meal that always feels a bit theatrical without being complicated The name is thought to reference the Roman goddess Diana a nod to both luxury and good taste
Recipe FAQs
- → What cut of beef works best?
Beef tenderloin medallions are ideal for their tenderness and quick cooking. They remain juicy and absorb the sauce well.
- → Can I substitute the cognac?
Yes, brandy is a good alternative. For a non-alcoholic version, use extra beef broth, though some flavor will differ.
- → How do I achieve the best sear?
Pat the medallions dry, use a hot skillet, and avoid overcrowding. Sear for 1-4 minutes per side based on desired doneness.
- → What mushrooms are recommended?
Cremini or button mushrooms hold up well and absorb flavors nicely, making them perfect for the sauce.
- → How can I tell when the steak is done?
Use an instant-read thermometer or the finger test. Internal temps range from 125°F (rare) to 160°F (well done).
- → What sides pair well?
Roasted potatoes, steamed greens, or a fresh salad complement the rich sauce and tender steak beautifully.