Boil the potatoes in salted water for 10 minutes (they are not supposed to be fully cooked through). Poke some holes in the potatoes using a fork. Then cover the potatoes in melted butter or olive oil and bake in the middle of the oven at 200 degrees celcius for 20 minutes.
2
Bake the prosciutto in the oven together with the potatoes for the last 12 minutes or until crispy.
3
Cut red onion into cubes.
4
Cut the baked potatoes into half and top with creme fraiche, red onion, crispy prosciutto and grated cheese.