Do this
1. Start by heating the oven to 200 ° C.
2. Peel the potatoes and cut into strips. Peel the onions and then slice it into thin half-moons.
3. Fry the sliced ​​onions soft in butter over low heat.
4. Grease a baking dish and start layering potatoes, onions and anchovies (save the broth from one of the cans). End laps with no potatoes on top.
5. Boil the cream mixed with milk. Pour gräddmjölken and anchovy broth of the oven dish.
6. Sprinkle with breadcrumbs and click on butter.
7. Bake Jansson temptation in the lower part of the furnace in 60-90 minutes.
Add on aluminum foil if it gets too much color.