Halve or quarter the green nuts (harvest by the end of July) and put them in a large jar (ideally a large cucumber jar) with the other ingredients and the starter grain.
Put the whole in the sun, or a warm place for 5-7 weeks.
Boil candy sugar in a little water.
Filter the liquor through a kitchen towel.
Mix the still warm sugar syrup with the filtered schnapps.
Fill into bottles and store in the dark.