Wash, peel (or not up to you) and cut the potatoes. I like to cut them pretty small so that they take less time for cooking and they create a nice ‘floury’ mash on the edges. Boil for 8-10 minutes in water with the big salt. You can test if the potatoes are ready by picking them with a fork, if it goes through with no resistance then it means that they are ready

Drain the potatoes and prepare a pan with oil and the rosemary branches. Turn on the fire and warm the pan until pretty hot but before the oil starts sizzling

Cook in the pan and add a bit more oil as thin salt. Cook for about 10 min steering often. You will see that the potatoes edges start to crumble a little bit, that might not be esthetically great but it tasted delicious when cooked!