Other methods:
With brown butter: As soon as it is possible to get the brown color of the main ingredient, lemon juice is poured into it until it has cooled down, and a small slice of fresh parsley is added. The most delicious is considered to be a heterogeneous seasoning with fresh grass, but you can kill everything in a blender. The greens are poured in at the last stage after the lemon juice has been poured, it should be mixed very carefully to achieve a delicate consistency.
Fish oil: In this case, they know in advance what the sauce is intended for. The fish is cut, rolled in flour and fried in sunflower oil. When turned over, frozen butter is placed on each piece. When it melts, it is carefully removed with a spoon and used to prepare the sauce in the future and to flavor seafood dishes. In this case, the taste of the seasoning changes, the shade of fish is clearly felt in it. It’s very tasty!