AND THAT'S HOW IT'S DONE:
To make the gnocchi dough, wash the potatoes and boil in salted water with the skins on until tender. Peel the potatoes and press them through a potato ricer while still hot. Wash, core and roughly dice the pumpkin. Place in a strainer and steam over boiling water until soft, about 15 minutes, then mash finely. If the pumpkin is too watery, carefully squeeze the puree in a tea towel if necessary or use a little more flour.
Mix the squeezed potatoes with the pumpkin puree, flour and egg yolk to a homogeneous mass. Season with salt, pepper and freshly grated nutmeg. Finally mix in the Parmesan cheese. Form the dough on a floured work surface into rolls about two centimetres thick. Cut them with a knife into two centimetre long pieces, form them into balls and roll them over a gnocchi board. If you don't have a gnocchi board, simply press a pattern onto the gnocchi with a fork.
Place the dough pieces on a kitchen towel, sprinkle with a little flour, then gradually place them in boiling salted water and let them cook at a lower temperature. As soon as the gnocchi rise to the top in the water, remove them with a slotted spoon and drain well.
Melt the butter in a pan, add the sage leaves and heat briefly. The butter should not turn brown. Cover the pumpkin gnocchi with the melted sage butter and plenty of shaved Parmesan and serve immediately.
Tip: The pumpkin gnocchi taste especially good if you serve them with crispy sage leaves. Simply wash a few sage leaves, dab them dry and place them next to each other in the pan. Fry over a low heat until crispy, turning once. Meal time!