
Mix the creamy mass for the liqueur. Beat the yolks with a mixer at maximum speed together with the powdered sugar until the mass turns into a thick foam. Add vanilla sugar and cream, continue beating.

Add alcohol. Reduce mixer speed to low and, without stopping whisking, pour in vodka in a thin stream. The result should be a homogeneous liquid without sugar crystals. When serving, the liqueur should be cooled to 12-20 degrees. It should be cool, but not cold.