Ingredients
Method
Boil the potatoes until soft enough to mash. In the meantime, cook the haddock in some of the milk and reserve the milk. Melt the butter and add the flour to make a roux. Add the milk (including that from the fish) by degrees, stirring. When the sauce will take no more milk, add the capers, haddock and mackerel. Mash the potatoes and assemble the pie. Sprinkle with cheese and cayenne pepper. Cook at 175C for 25mins or until the top is golden.