Directions
Place 1 tablespoon butter in a large pan over low heat. Add the onions. Cook until the onions are soft and translucent. Let cool. In a bowl combine the onion, smoked haddock, steam haddock, parsley and mashed potato. Mix the ingredients. Form into 12 to 16 small patties. Place egg in a bowl along with water and whisk. Place flour in a separate bowl and Panko bread crumbs in a third bowl. Dip a fish cake in flour, shake off excess. Next dip in egg wash, and shake off excess. Finally dip in bread crumbs. Repeat until all the fish cakes are crusted with bread crumbs. Place on a parchment lined baking sheet. Refrigerate for 30 minutes. Place butter and olive oil in a large non-stick pan set over medium heat. Working in batches fry the fish cakes until golden brown; about 3 minutes per side.