Herring pate with potatoes

Gut the herring, remove the skin, remove the bones and scroll twice through the meat grinder. Very finely chop the onions. Boil the potatoes in a uniform, peel and mash with the yolks. Peel the apples from the peel and seed and cut into small cubes. Combine everything, salt, pepper, add vinegar and olive oil (you can add soaked in milk and squeezed crumb of loaf). Mix well, if necessary, scroll again through the meat grinder. Put on a dish, giving shape. Garnish with chopped spring onions and grated protein. Refrigerate to set.