8 well washed oranges
1 cinnamon stick
3 slices fresh ginger
1 vanilla bean pod
2 1/2 cups white sugar
Peel the skin from the oranges, making sure there is no white pith. Place into a large clean airtight container or jar. Add cinnamon stick, fresh ginger, vanilla bean pod and vodka. Seal and stand at room temperature for 1 week.
Combine white sugar and 2 1/2 cups water in a saucepan, stir over a low heat until sugar has dissolved. Remove and cool. Add the orange peel mixture to the sugar syrup and chill for 2 days.
Strain the liqueur, discarding the solids. Pour into a clean bottles and store in the freezer for up to 3 months. If gifting, place into bottle and insert new spices.