Marinated Mackerel

Prepare the ingredients: mackerel (350 g), table salt (12 g), black pepper (1 g), dill (10 g), lemon juice (10 g), onion (40 g), mustard (20 g).

Season the mackerel fillet with salt and pepper, cover it, and refrigerate for 24 hours.

Remove any remaining bones, cut the fish into pieces, and place it in a bowl.

Add the dill, lemon juice, thinly sliced onion, and mustard, mix well, and store in the refrigerator for up to 72 hours.