Crumble the yeast into a few tablespoons of lukewarm milk, mix in the sugar, dust with a little flour, and let rise in a warm place for about 15-20 minutes.
Pour the flour into a bowl, measuring the salt generously, make a well in the middle, and pour in the risen yeast.
Add enough milk to get a light dough, then add the melted butter.
Knead thoroughly and quickly by hand.
Shape into equal small balls on a board.
Place on a buttered baking tray and let rise in a warm place for about 30-40 minutes, until doubled.
Brush with beaten egg and bake in a moderately hot oven (180°C) for about 15-18 minutes.
Based on: Malatinszky Fanny szakácskönyve (a classic Hungarian cookbook), modernised. Calories and protein are estimated.