Salmon Katsu with Creamy Egg and Japanese Curry Sauce (แซลมอนคัตสึไข่ข้นราดซอสแกงกะหรี่)

Ingredients

• Thick salmon fillets 2 pieces
• Salt for seasoning
• Egg 30 g
• All-purpose flour 30 g
• Milk 20 g
• Farmhouse panko breadcrumbs 1 cup
• Vegetable oil for frying
• Finely chopped onion 60 g
• Unsalted butter 1 tbsp
• All-purpose flour 1 tbsp
• Japanese curry powder 2 tsp
• Chicken stock 150 ml
• Tomato ketchup 1 tbsp
• Honey 2 tsp
• Shoyu (soy sauce) 1 tsp
• Whipping cream 1 tbsp
• Salt to taste
• Eggs 3
• Milk 3 tbsp
• Salt ¼ tsp
• Unsalted butter 2 tsp
• Japanese steamed rice for serving