2lbs(908g) chuck roast or stewing beef cut into 1 ½ inch cubes
1onion diced
2 ¼cups(511g) beef broth, divided
1tablespoonDijon mustard
1teaspoongarlic powder
1tablespoonWorcestershire sauce
Salt and pepper to taste
1pound(454g) mushrooms, sliced
1cup(208g) sour cream
3tablespoonscornstarch
12oz(340g) egg noodles, cooked and tossed with 1 tablespoon butter
Optional garnish: chopped fresh parsley or dill
Instructions
Heat oil in a skillet or cast iron pan. Sear beef in small batches until browned on all sides. Add to slow cooker.
Sauté onion in pan, adding more oil if necessary until golden and soft. Add to slow cooker.
Add 2 cups beef broth, Dijon, garlic powder, Worcestershire, and mushrooms to slow cooker.
Cook on high 4-5 hours or on low 7-8 hours or until beef is tender.
Combine remaining ¼ cup broth with cornstarch and stir until smooth. Stir into slow cooker. Cover and cook and additional 10 minutes or until thickened.
Stir in sour cream.
Serve over egg noodles.
Notes
Browning the beef adds tons of flavor to the dish. If you’re really in a hurry, you can skip the browning step and just combine everything in the crock pot.I use a full fat sour cream and have no problems with the sauce curdling. If you use a lower fat sour cream or Greek yogurt, (or just want to be extra careful) temper it first by stirring some of the hot sauce into the sour cream or yogurt, then stirring the sour cream or yogurt into the slow cooker.