Ingredients
Equipment
Method
Prepare the Beef
- Pat the beef strips dry with paper towels. Season generously with 1 tsp salt and 1/2 tsp black pepper.
- Heat 1 tablespoon of olive oil in a large skillet or Dutch oven over medium-high heat until shimmering. Add half of the beef in a single layer, ensuring not to overcrowd the pan. Sear for 2-3 minutes per side until nicely browned. Remove the beef to a plate and repeat with the remaining 1 tablespoon of olive oil and beef. Set aside.
Sauté Vegetables
- Reduce the heat to medium. Add the chopped onion to the same skillet and cook, stirring occasionally, until softened and translucent, about 5-7 minutes. If needed, add a splash of beef broth or water to deglaze any browned bits.
- Add the sliced mushrooms to the skillet and cook until they release their moisture and start to brown, about 5-8 minutes. Stir in the minced garlic and cook for another minute until fragrant.
Build the Sauce
- Sprinkle the flour over the vegetables and stir continuously for 1-2 minutes to cook out the raw flour taste, creating a roux.
- Gradually whisk in the beef broth, Worcestershire sauce, and Dijon mustard. Bring the mixture to a simmer, stirring constantly, until the sauce thickens, about 3-5 minutes. Stir in the paprika.
- Reduce the heat to low. Stir in the sour cream until fully incorporated. Do not boil the sauce after adding the sour cream, as it may curdle. Taste and adjust seasoning with more salt and pepper if needed.
Combine and Serve
- Return the seared beef strips (and any accumulated juices) to the skillet with the sauce. Stir to combine and heat through for 1-2 minutes, just until the beef is warmed. Avoid overcooking the beef at this stage to keep it tender.
- Serve immediately over hot cooked egg noodles or rice, garnished with fresh chopped parsley.
Notes
For best results, ensure your sour cream is at room temperature before adding it to the sauce to prevent curdling. You can also temper it by whisking in a small amount of the hot sauce before adding it to the skillet. Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stovetop over low heat, adding a splash of broth if needed.
