Press steaks to a neat shape; cut bread into rounds about the same size as steaks. Heat butter in pan, add mustard, mix well. Brush bread on both sides with this mustard butter, place on oven tray, bake in moderate oven 20 minutes or until golden brown. Heat extra butter in pan, add steaks, cook until done to your liking. Remove from pan, keep warm. Drain off pan drippings, leaving 1 tbsp in pan. Add flour, add finely-chopped shallot, stir over medium heat a few seconds. Stir in water, stir until sauce boils ass cream, parsley, crumbled stock cube, whisky and lemon juice, reduce heat simmer 1 minutes. Serve steak on bread drizzled with sauce.