Home Porcini Top Sirloin with Roasted Mushrooms

Porcini Top Sirloin with Roasted Mushrooms

by Brad Prose

Seared steak, roasted mushrooms, and a cream sauce. This top sirloin steak is one heck of a savory meal! Get ready for a simple, delicious dish.

porcini crusted top sirloin, caramelized mushrooms, béarnaise sauce.

This post is sponsored by Omaha Steaks. All opinions are my own.

One of the most savory steaks you’ll eat.

Top sirloin is the beefy hero of the day. Please check out my overall guide on Top Sirloin if you haven’t. There are so many different ways to grill, roast, sear and finish steaks. That’s what makes the discovery so fun, a process I went through as I narrowed down my favorite ways to prepare this cut.

I wanted to highlight the top sirloin by amplifying flavors that will enhance the “beefy flavor” without overshadowing it.  That method is simple: use umami.

Umami isn’t foreign to any of us. It’s that “fifth taste” which presents a savory, meaty quality when used. Think about soy sauce, Worcestershire sauce, cheeses, oysters, and the list goes on. You’ll notice this recipe uses Worcestershire sauce as a quick marinade, a base level of umami we’ll build up.

The next level of umami is using porcini powder. Porcini mushrooms have a high level of glutamates, making them extra savory and nutty when used. You can either make your own or buy it premade. I typically pick up a small bag at Whole Foods and just grind it myself.

I used these aged Private Reserve Top Sirloins from Omaha Steaks. This recipe below is going to be using my preferred cooking method for top sirloin which is pan searing, and finishing in the oven. Again, I cover the different methods and thoughts in my previous guide.

Top sirloin, heavily seasoned.

How do I pair food with the steak?

Keep it interesting, add textures but don’t have too many contrasting flavors. I used beef fat roasted potatoes, caramelized mushrooms and a béarnaise sauce. I wanted crispy, creamy, and just a little acid to brighten to flavors (béarnaise sauce). You could use almost any roasted or grilled vegetables, eggs, gravy, biscuits… well now I’m thinking about breakfast!


  • You might find that my rub is a bit lower on salt that you’d like. Increase it if you’d like, but take in mind that the marinade also adds a level of saltiness.
  • Pay attention to the steak when it’s in the oven. 300°F is a safe temperature, making it more difficult to let it pass you on by. Don’t just go off of my timing, check the temp! Cooking is about intuition.
  • You can use fresh thyme leaves if you’re going to use the rub right away, just use 1/2 tsp instead. I’d add them into the spice grinder with the mushrooms and peppercorns for an extra punch.
Top sirloin paired with crispy potatoes.
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Porcini Top Sirloin

  • Author: Brad Prose
  • Total Time: 40
  • Yield: 3-4


Seared steak, roasted mushrooms, and a cream sauce. Talk about a savory meal! Get ready for a simple, delicious dish.


  •  2 Top sirloin steaks, 8oz each
  •  2 tbsp Worcestershire sauce
  •  2 tbsp Grapeseed or canola oil

Steak Rub

  •  ½ oz dried porcini mushrooms
  •  1 tbsp whole black peppercorns
  •  1 tsp smoked paprika
  •  1 tsp dried thyme leaves
  •  1 tsp coarse kosher salt


  1. Remove the steaks from packaging and pat it down dry. Place it in a sealed plastic bag with the Worcestershire sauce, mix around, seal, and place in the fridge for at least 30 minutes.
  2. For the rub, place the dried mushrooms and peppercorns in a spice grinder and grind into a fine powder. Mix with the other ingredients.
  3. After 30 minutes, remove the meat from the fridge and pat it dry. Apply this rub generously and aggressively, allowing it to sit at room temp while you prepare the rest. Turn the oven on to 300°F.
  4. Heat up a skillet to Med-High heat. Add in the oil after the pan is hot. When the oil is shimmering, place the steak on the skillet and sear for 60 seconds on every side. You’re looking for a nice brown crust.
  5. Quickly remove the steak and loosely wrap in foil, place on a baking sheet in the oven for 6-8 minutes. Check the temperature to your preference. I like mine about 135°F which is a touch above Med-Rare.
  6. Let the steak rest for 10 minutes, slice, and enjoy!


Serve with crispy potatoes or grilled vegetables, the sauce will pair perfectly!

  • Prep Time: 30
  • Cook Time: 10
  • Category: Beef
  • Method: Grilling
  • Cuisine: Steak

Keywords: Steak, top sirloin, mushrooms, sauce, dinner, beef, porcini

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