Katsu Cod Fishcakes

Name: Katsu Cod Fishcakes
Ingredients: 500 g floury potatoes, peeled and cut into 4cm pieces; 1 tbsp. vegetable oil, plus extra to fry; 1 onion, finely sliced; 2 tsp. medium curry powder; 1 red chilli, deseeded and thinly sliced; 500 g skinless cod fillets, cut into 2cm pieces; 3 tbsp. plain flour; 2 medium eggs, beaten; 100 g panko breadcrumbs; 1 tsp. vegetable oil; 1 onion, finely chopped; 3 cm piece fresh root ginger, peeled and finely grated; 2 garlic cloves, crushed; 1 tbsp. medium curry powder; 500 mL chicken or vegetable stock; 1 tbsp. runny honey; Pak choi, wilted, to serve