This is a recipe that we had a lot when we were kids, it was a very popular dish and very cheap. we had ours with boiled potatoes, and a spoonful of the lard it was cooked in. That's all changed now as the lard wasn't good for your arteries. but we did like it. I live in Scotland and we had a lot of scandinavian recipes, as the fishermen traveled far and wide, and herring was in abundance sadly today it's a diferent story it's in very short supply now, and very expensive. You can just use the one kind of oatmeal if you like.