My mother made Matsumae pickles today.
Matsumae zuke is a local Hokkaido dish made with kombu seaweed and surume squid.
It is also served as a New Year's dish in Hokkaido because it is a preserved food for the cold winter.
Soak thinly sliced kelp and squid in water, then marinate in a sauce made of soy sauce (gluten-free), dried bonito flakes, sugar, vinegar and dashi powder.
I don't know the amount of seasoning.
Because my mother made it.
It was a delicious pickle to go with rice!