Recipe: Oven-Roasted Top Sirloin with Truffled Mushroom and Brandy Sauce

Recipe: Oven-Roasted Top Sirloin with Truffled Mushroom and Brandy Sauce

An exceptional dish that will impress any dinner guest

Roast

  • 2 kg Olliffe top sirloin roast (please call ahead to ensure this cut is ready for you)
  • 50 ml Bioitalia extra virgin olive oil
  • 75 gr Amos’ steak spice 

Truffled Mushroom and Brandy Sauce

  • 50g of Cows Creamery salted butter (diced)
  • 125g shallots (thinly sliced)
  • 250g cremini mushrooms (thinly sliced)
  • 25g garlic (minced)
  • 30 ml Royal Command black truffle oil
  • 60g Olliffe red wine jus
  • 40 ml brandy
  • 500 ml heavy cream
  • 50g Dennis’ hot horseradish
  • 20g fresh tarragon (chopped) or 10g dried tarragon
  • Salt and pepper to taste
  1. Preheat your oven to 350°F and place a small metal container of water inside (this will create some moisture/steam).
  2. Rub your roast with olive oil and add as much steak spice as you’d like.
  3. Roast your beef in the oven until the sirloin reaches an internal temperature of 123F (this results in a nice medium rare). Remember, it is always best to assess the doneness of a roast by temperature versus time!
  4. Once your desired temperature has been achieved, remove your roast from the oven and tent with tinfoil to rest for 15 minutes. While the meat rests, make your sauce.
  5. Bring a heavy bottomed sauce pan to high heat and add in the butter, truffle oil and shallots. Cook out for 5 minutes.
  6. Add in the sliced mushrooms and cook for another 5 minutes.
  7. Add in the garlic and cook for 1 minute. Never add the garlic too early as it will burn and turn the sauce bitter.
  8. Add in the brandy and red wine jus and reduce for a minute.
  9. Finish with heavy cream, tarragon and horseradish. Allow to reduce till cream thickens to a sauce consistency.
  10. Season to taste with salt and pepper. 

Serve your roast thinly sliced over oven-roasted vegetables and mashed potatoes or buttered egg noodles. Top with your truffled mushroom brandy sauce and enjoy while still hot.