Horseradish is traditionally made into a sauce to serve with roast beef, venison or robust-flavoured fish such as tuna, smoked trout and mackerel. It is grated and can either be mixed with cream to make creamed horseradish sauce, or mixed with vegetable oil to give hot horseradish sauce, which has a stronger flavour and a thicker consistency than creamed horseradish. Take care when grating horseradish as the vapours can sting your eyes. Serve with venison or well-flavoured fish such as mackerel or tuna, or stir into mashed potatoes for a tangy flavour.