A dollop of horseradish is all it takes to intensify potatoes au gratin, and the ingredient works just as well for elevating your mashed sides. Horseradish packs pungent flavor with earthy heat ...

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.

At the Los Angeles restaurant Waterloo & City, chef Brendan Collins makes a shepherd’s pie topped with mashed parsnips and potatoes, mixed with horseradish for “a nice unexpected bite.” ...

These baby potatoes are stuffed with a cheddar and horseradish filling, which is perfect for relaxed and cozy nibbling. You can easily riff on the fillings to your preference. For instance ...