Ingredients
Equipment
Method
Step-by-Step Instructions
- Prepare the Beef: Pat the sirloin steak dry, cut into thin strips, season with salt and pepper, and coat lightly with flour.
- Sear the Beef: Heat olive oil in a skillet, brown beef in batches for about 1 minute per side, then set aside.
- Sauté Onions and Mushrooms: Melt butter, sauté onions for 4-5 minutes, add mushrooms and garlic, cook for 4 more minutes.
- Thicken Sauce: Sprinkle flour, stir, then add beef broth, Worcestershire sauce, mustard, and thyme. Bring to a boil, then simmer for 5 minutes.
- Combine Beef and Sauce: Return beef to skillet, coat in sauce, heat for 2 minutes, then stir in sour cream.
- Serve: Ladle over egg noodles or mashed potatoes, garnish with parsley, adjust seasoning as needed.
Nutrition
Notes
For leftovers, store in an airtight container for up to 4 days. Freeze for longer storage, reheating with a bit of broth.
