【原料】 400g assorted fish and seafood, 500ml milk,1kg potatoes, peeled and diced,50g butter,25g lean smoked bacon, cut into thin strips,1 large onion, p eled and thinly diced,100g white of leek, thinly sliced,75g celery heart, finely sliced,2-3 cloves garlic Peeled and sliced, 50g plain flour, 500ml London Gold, 750ml cooking liquor from the fish,50g creamed horseradish, D..