Steak Diane Recipe - Great British Chefs

Ingredients

• 4 fillet steaks
• 1 banana shallot, finely diced
• 1 garlic clove, sliced
• 80g of button mushrooms, sliced
• 1 knob of butter
• 100ml of cognac
• 1 tsp Worcestershire sauce
• 1 tsp Dijon mustard
• 150ml of double cream
• 1 handful of parsley leaves, finely chopped
• olive oil
• salt
• freshly ground black pepper
• 150g of cavolo nero, blanched (or other seasonal greens)