When potatoes are done, remove peel and finely shred them into a plastic bowl. When they are completely cool, mix in the eggs, salt, flour and wheat semolina. The dough will be very sticky but homogeneous.
Meanwhile, in a non-stick frying pan melt butter then add the breadcrumbs and brown it on low heat. When it becomes golden-brown remove from heat and mix in the 1.4 oz of granulated sugar; mix thoroughly and let completely cool off.
Wash potatoes and boil them with peel on.
Start by cleaning the plums, halve them and discard the pits (obviously); sprinkle 2-3 tbsp powdered sugar on them.