Watercress and horseradish cream

Remember the inevitable grilled tomato and sprig of hairy watercress that partnered all mixed grills and steak back in the day? Watercress was wasted as garnish for it has a powerful and assertive flavour. People who like watercress will usually be fond of ingredients like mustard, radishes and horseradish. And those who don’t will not be trying this recipe.