Gratin Di Patate

Sometimes, if I'm busy doing some tasks, I prefer to cook something that does'nt need much effort. Usually, the one that I'm cooking is the Gratin di Patate.

Here are ingredients:

900 grams of potatoes
coarse salt
50 grams of butter plus 30 grams for the baking pan
2 tbsp. of olive oil
450 grams of onionsin thin slice
1 cloves of garlic (flattened)
fine salt
pepper
30 cl. of chicken broth
rosemary for garnishing


Directions:
1. Peel the potatoes and wash. Cook for 10 minutes in boiling water with salt. Drain, make it cold, then cut into circle. Preheat the oven at 200°C.
2. Heat the butter in the olive oil (in medium fire). Put the onions and dry up for 5 minutes. Combined the garlic, salt and pepper.
3. Grease the baking pan. Put the potatoes and the onions in layer, start and end with potatoes. Sprinkle with chicken broth and butter in pieces.
4. Cover with aluminium and bake into oven for 80 minutes. Remove the aluminium and put the potatoes under the grill. Garnish with rosemary and serve immediately.