Ingredients:
- lbs Beef Sirloin or Tenderloin, thinly sliced
- Tablespoons All-Purpose Flour (for dredging)
- Tablespoons Unsalted Butter
- Tablespoon Olive Oil
- medium Yellow Onion, finely chopped
- oz Cremini (Baby Bella) Mushrooms, sliced
- cloves Garlic, minced
- Salt and Freshly Ground Black Pepper to taste
- cups Beef Broth (low sodium preferred)
- Tablespoon Worcestershire Sauce
- teaspoon Dijon Mustard
- Tablespoon Tomato Paste
- Tablespoon Cornstarch (optional, for slurry)
- cup Sour Cream (full-fat, room temperature)
- Tablespoons Fresh Parsley, chopped (for garnish)
- oz Wide Egg Noodles
Instructions:
- Lightly toss the sliced beef strips with 1 tbsp of flour, salt, and pepper until lightly coated.
- Heat half the butter and oil in the skillet over medium-high heat. Sear the beef in small batches until nicely browned (about 1-2 minutes per side). Remove beef and set aside, keeping warm. Do not overcrowd the pan.
- Add the remaining fat to the skillet. Sauté mushrooms until they release their liquid and brown nicely (about 6-8 minutes). Add the onion and cook until softened (3 minutes). Add garlic and tomato paste; cook for 1 minute until fragrant.
- Whisk in the remaining 1 tbsp of flour into the mushroom mixture, cooking for 1 minute. Slowly whisk in the warm beef broth, scraping up any browned bits from the bottom of the pan. Stir in Worcestershire sauce and Dijon mustard. Bring to a gentle simmer.
- While the sauce simmers, cook the egg noodles according to package directions until al dente. Drain well, reserving about 1/2 cup of the starchy cooking water.
- Return the seared beef to the sauce. Simmer gently for 5-7 minutes until the beef is tender and the sauce has reduced slightly. If needed, whisk in a cornstarch slurry (cornstarch mixed with cold water) until desired consistency is reached.
- Remove the skillet from the heat. Let the sauce cool for 2 minutes. Take 1/2 cup of the hot sauce/broth and slowly whisk it into the room-temperature sour cream in a separate bowl (tempering). Slowly whisk the tempered sour cream mixture back into the main sauce. Taste and adjust seasoning. Do not boil the sauce after adding the sour cream.
- Gently fold the drained egg noodles into the sauce, or serve the Stroganoff spooned directly over the noodles. Garnish generously with fresh parsley.