Ingredients
Method
1.
Coat beef all over in flour, shake off excess. Heat half the oil in a large frying pan; cook beef, in batches, until browned. Remove from pan.
2.
Heat remaining oil in same pan; cook onion, stirring, until onion softens. Add marsala; bring to the boil. Add onion mixture to 4.5-litre (18-cup) slow cooker; stir in stock, sauce, mustard and rosemary. Place beef in cooker, fitting pieces upright and tightly packed in a single layer. Add mushrooms to cooker. Cook, covered, on low, for 8 hours.
3.
Carefully remove beef from cooker; cover to keep warm. Add cream and combined gravy powder and the water to cooker; cook, covered, on high, for 10 minutes or until mixture thickens slightly. Stir in parsley; season to taste. Serve beef with mushroom sauce.