Boil the potatoes with the peel and add a little salt to the water. When they are boiled we peel and crush them as if they were pearly, then let them cool.
During this time, we put in a large pot of boiling water and add a pinch of salt. We also prepare the crumb, in a pan we put 1-2 tablespoons of oil to the heat, add the crumb and sugar and leave on low heat until slightly dark, stirring constantly.
In a bowl mix the mash with flour, egg, lard (oil) and knead well until it becomes a dough. The obtained composition extends on a flat surface and is cut into squares.
Prepare the plums: remove the pips and in the middle put a little sugar and optionally cinnamon.
In each cut square, put a plum, wrap and shape like a ball.
When the water boils, the ''balls''(Gomboti) are added, let them boil until they rise to the surface, and leave them for another 1 minute. Then we remove them and tray them through the fried breadcrumb.