Arrange the vegetables around the corned beef. Serve with the mustard sauce. Adapted from several recipes. Tested by Susan Selasky for the Free Press Test Kitchen. Preheat the oven to 300 degrees.

Cook over a low heat ... shouldn’t need salt as the corned beef is fairly salty – and remove from the heat. Leave to cool for about 20 minutes. Preheat the oven to 190C/375F/Gas 5.

This is about as easy as you can get - cook this corned beef hash in batches and keep it warm in dishes covered with aluminium foil in a low oven. Melt the butter in frying pans until foaming and ...