A really warming and filling soup perfect for winter evenings. Spuds such as Maris Piper or Kerrs Pinks work a treat. For the stock cubes, get them from the Polish section of the shop (that's Polish as in from Poland and not polish as in shoe polish!!!).
This soup still tastes great the next day.
Growing up in Belfast my Granny used to make this soup minus the cayenne and the Maggi® liquid seasoning which was really nice in itself but I think my changes have enhanced it.