Mackerel with horseradish snow is a refreshing and flavorful dish that combines the richness of mackerel with the tangy and spicy kick of horseradish. The mackerel is pan-seared to perfection, creating a crispy skin and tender flesh. The horseradish snow adds a unique texture and a burst of flavor to the dish. This recipe is perfect for seafood lovers looking for a new and exciting way to enjoy mackerel.