This recipe for grilled Kanpachi with lemon butter sauce is sure to make you fall in love with this delicious fish. To make this dish, you will need the following ingredients: Kanpachi fillets, butter, lemon juice, garlic, salt, and pepper. First, preheat your grill to medium-high heat. In a small saucepan, melt the butter and add the garlic. Cook for a few minutes until the garlic is fragrant. Remove from heat and stir in the lemon juice. Season the Kanpachi fillets with salt and pepper, then place them on the grill. Cook for about 4-5 minutes on each side, or until the fish is opaque and flakes easily with a fork. Remove the fish from the grill and drizzle with the lemon butter sauce. Serve immediately and enjoy the tender, flavorful Kanpachi with the tangy lemon butter sauce.