In the jar, add layers of onions, carrots, lemon slices and salted herring. Shift the layers with dill sprigs and bay leaves.
Pour the oil and put it in the refrigerator for another day. Periodically turn the jar over so that the marinade inside is evenly distributed.
A few tips from personal experience of cooking this dish:
1. It is better to take a thin-cored lemon, because a thick-cored lemon in the process of pickling is a little bitter.
2. If you are afraid of lemon bitterness in the dish, then I recommend removing the zest from the lemon, removing the white part of the crust and cutting the lemon into slices without a crust. And add lemon slices without a peel and lemon zest to the jar. Then there will definitely be no bitterness
3. In some recipes, herring is put in a jar with vegetables immediately, sprinkled with salt and sugar. In my opinion, with such a bookmark of products, the herring does not have time to salt, but the vegetables become over-salted. Therefore, I recommend that you first salt the herring, as I wrote, and then marinate it with vegetables and lemon.