Dominic Chapman's seared mackerel recipe is quite the showstopper. Mackerel and horseradish complement each other beautifully, and the peppery watercress leaves provide a flavourful contrast to the main parts of the dish. The beetroot relish included in this recipe could work well as a colourful addition to other meals.
Seared mackerel with beetroot, horseradish and watercress