Wash the leek and cut into rings. Peel and dice the potatoes.
Heat the oil in a large saucepan. Fry the leek in it, dust with curry and roast a little together. Add the potatoes, as well as the broth and simmer everything until the potatoes are cooked through.
Mash or puree the leek and potatoes, stir in the cream cheese. Finally, season with salt and pepper.