Crush together fennel, anise, corriander seeds and cloves a bit. Chop the angelica stems and mix with seeds in a large preserving jar. Add the sugar and vodka and let sit someplace sunny for two weeks, swirling the mixture daily.
Strain through a cheesecltoh into a sterilized bottle and seal. Let set up for at least four months. The final note is "drink in small quantities with a piece of angelica in each glass"