Next level chicken katsu curry

Name: Next level chicken katsu curry
Prep time: 20 min
Cook time: 45 min
Total time: 1 h 5 min
Cuisine: Japanese
Ingredients: 2 large chicken breasts; 400ml milk; 100g plain flour; 2 eggs beaten; 150g panko breadcrumbs or coarse dried breadcrumbs; sprinkling shichimi togarashi or chilli power, plus extra to serve; splash of soy sauce; sunflower oil for frying; 50g butter; 1 large carrot chopped; 1 onion chopped; 4 garlic cloves chopped; large piece of ginger chopped; 2 tbsp mild curry powder; 1 tbsp honey; 1 tbsp ketchup; 1 tbsp red or brown miso paste; 1 tbsp soy sauce; 1 chicken stock cube; shredded white cabbage shredded nori, sesame seeds and cooked rice, to serve