Herring and potato casserole

Preparation

1. 1

   Peel the potatoes and cut them into thin slices, about 3 mm thick.

2. 2

   Finely slice the onion.

3. 3

   Butter a gratin dish, layer potatoes, then onion, then a few pieces of drained marinated herring fillet. Repeat the layers.

4. 4

   Season with pepper between layers (the herring already brings salt).

5. 5

   Pour the cream over everything until it just reaches the top of the potatoes.

6. 6

   Bake at 200°C for 45 minutes, until the potatoes are tender and the top is nicely golden.

7. 7

   Let rest 5 minutes before serving with rye bread and a green salad.