Pickled herring is often eaten in Denmark, as it was already in the past easy to produce in that area, given to the proximity to the sea. It is conserved which made it easy to consume also during cold winter days. Nowadays it is still a nutritious food that provides us with healthy proteins, omega-3 fatty acids and vital micronutrients.
Pickled herring might be an old classics, but it is still highly popular so that you might be in need to advertise it. Here you will find great photos!