Heat the water to almost boiling and steep the tea for 4 minutes. Discard the tea bags, and add in the maple syrup and salt. Stir to combine and set to the side to cool.
Meanwhile make 2 ounces of espresso and set that aside to cool.
Combine in a shaker the cooled chai, espresso, milk, vodka and ice.
Strain into 4 martini glasses, and garnish with star anise.