For the gratinated nettle potatoes, first boil water with the potatoes and cook them.
In the meantime, blanch the nettle leaves briefly in hot water. Then remove with a ladle, drain on kitchen paper.
Preheat the oven to 180 °C.
Peel and finely chop the onion and garlic. Heat the olive oil and sauté both in it. Squeeze the nettle leaves well, chop them a bit and add them.
Mix in the whipped cream, season the mixture with salt and pepper and cook briefly.
Cut the cooked and unpeeled potatoes in half and place them on a baking tray lined with baking paper. Spread the nettle mixture on top.
Sprinkle the grated mountain cheese on top and bake in the oven for 15 minutes.
Serve the nettle potatoes au gratin while still warm.