Ingredients: 300g cold mashed potatoes 6 spring onions, thinly sliced 1 tbsp horseradish sauce 250g / 9oz peppered Trout (Sun Valley Smoked Trout) fillets, skinned and flaked 2 tbsp plain flour 1 egg, beaten 85g dried breadcrumbs sunflower oil, for frying (OPTIONAL) salad and lemon wedges, to serve Method: In a large bowl, mix together the potato, spring onions, horseradish and mackerel, then shape into 8 even-size cakes. Roll the fish cakes in the flour, shaking off any exce