h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

Janssons Frestelse is a traditional Swedish christmas dish - it translates into "Jansson's Temptation".

5-6 medium potatoes
2 large yellow onions
15-20 anchovie fillets
2 tbsp butter
3/4 cup heavy cream
bread crumbs
freshly ground black pepper

Peel and grate the potatoes, then place them in cold water (to wash out the starch). Slice the onions thinly. Grease a casserole dish, about 20x30 cm, and layer potatoes, onions and anchovies in the dish, starting with potatoes. Pour the cream, and dot the butter on top. Add bread crumbs and pepper evenly over the mix. DON'T ADD ANY SALT! Bake at 200 C for approx. 45 mins (until the top has turned golden brown).

For a veggie alternative, replace the anchovies with whatever roots you prefer, and add salt according to taste.

Serve with bread and preferrably a .