A pack of margarine melt over low heat and cool. Add the flour and knead the dough. Add boiled egg yolk and mix. Roll the balls and bake in the oven, previously put in as filling nuts, raisins or candied.
Prepare the glaze. Half a glass of milk with sugar and cocoa boil until thick. Hot dip balls into the glaze and crumble into wafers (pre-grated).