Ingredients
Method
Preparation
- Slice steak thinly against the grain, chop onion, and slice mushrooms if using.
Cooking
- In a hot pan, quickly sear the beef in batches until browned. Remove to a plate.
- Cook the onion and mushrooms until softened, then add garlic for a few seconds.
- Stir in flour, then slowly add beef broth. Add Dijon mustard and Worcestershire sauce.
- Return beef and its juices to the pan, stir briefly, then remove from heat and add sour cream.
Notes
Do not boil the sour cream to prevent it from splitting. Store leftovers in the fridge and reheat gently, adding a splash of broth.
