Fish Butter Chilli Oyster Sauce is a flavorful dish where fish fillets are cooked in a buttery, rich sauce made with chili and oyster sauce. The sauce adds a deep umami flavor, while the butter makes the dish creamy and smooth. The addition of chili gives it a spicy kick, balancing the richness of the sauce. The fish absorbs these complex flavors, making this dish a savory delight that’s perfect with steamed rice or noodles.