Prepare the potatoes. Place the potato wedges in a bowl, add olive oil, salt and pepper. Mix well. Place the potatoes on a baking sheet lined with baking paper. Place the baking sheet in the oven. Bake until golden brown for 30 minutes at 215℃.
Prepare the sauce. In a bowl, mix yogurt with Dijon mustard, add capers, parsley, cayenne pepper. Mix thoroughly.
Prepare the breading. In a separate bowl, combine the wheat and corn flour, add salt and ground black pepper. Mix well.
Prepare the fish. Heat the oil in a frying pan over medium heat. Dip the cod strips in the sauce, then generously roll them in flour and put them in the frying pan. Fry over medium heat for 4 minutes on each side. Place the finished fish on a napkin to remove excess oil.