Ingredients
Equipment
Method
- Trim excess fat from beef chuck and cut into chunks.
- Place beef, onion, and mushrooms in the slow cooker. Season generously with salt and pepper and toss gently.
- Pour beef broth over the mixture. Cover and cook on low for 8 hours or high for 6 hours, until beef is fork-tender.
- About 30 minutes before serving, cook egg noodles according to package directions.
- In a small bowl, whisk cornstarch with cold water to form a smooth slurry.
- Ladle 1 cup of hot broth from the slow cooker into a small saucepan. Whisk in the slurry.
- Heat over medium, whisking constantly, until thickened (about 2–3 minutes). Return mixture to slow cooker.
- Stir in sour cream, Dijon mustard, and Worcestershire sauce. Mix well.
- Taste and adjust seasoning. Serve hot over noodles, garnished with fresh dill if desired.
Notes
Chuck roast delivers the most tender texture with long slow cooking. Baby bella mushrooms give a deeper flavor. Dish tastes better the next day. Don’t boil after adding sour cream—just heat through.