The butter is melted in a deep pan. Put the flour to pozaparzhi until golden. During this time Boil the milk with the sugar and vanilla. Trickle and stirring continuously pour in the flour. Boil over very low heat about 15 minutes, and stirred not burn. When cool make balls in the middle put a whole walnut nut, and may be Spread mixture in pan and top to sprinkle with chopped walnuts.