Ingredients
Equipment
Method
- Pat beef slices dry with paper towels.
- Heat butter and olive oil in a large skillet over medium-high heat.
- Add beef in a single layer (cook in batches if needed). Cook undisturbed for 2–3 minutes until browned, then flip and cook 1 more minute. Transfer to a plate.
- In the same skillet, add onions and mushrooms. Cook for 4–5 minutes until onions are translucent and mushrooms release juices.
- Add garlic and cook for 30 seconds until fragrant.
- Sprinkle in flour and stir constantly for 1 minute to cook out the raw flour taste.
- Slowly pour in beef broth, scraping up browned bits from the pan.
- Stir in Worcestershire sauce and Dijon mustard. Simmer for 3–4 minutes until slightly thickened.
- Return beef and any juices to the skillet. Reduce heat to low and cook for 2–3 minutes.
- Remove skillet from heat and gently stir in sour cream until smooth.
- Season with salt and pepper to taste.
- Serve immediately over hot egg noodles. Garnish with chopped parsley.
Notes
Use full-fat sour cream to prevent curdling. Pat beef dry for proper browning. Don't rinse noodles—starch helps sauce cling. Store sauce and noodles separately up to 3 days. Reheat gently with added broth if needed.