In a kitchen aid stand mixer add butter, sugar, powdered sugar cream well. To this add flour, salt and vanilla chai packet and mix well until everything combined well.
Scrape the dough out of the bowl and warp it in a parchment paper. Freeze the dough, or chill for at least 30 minutes.
Make chai spice powder by grinding all the ingredients for chai spice. Then mix the chai spice with sugar and set aside.
To bake, preheat the oven to 350°F and line a baking sheet with parchment or a Silpat. Spread the dough into ¼ inch sheet and cut out using your favorite cookie cutter. Then roll the dough into chai spice sugar. Place the cookie on the baking sheet and bake until the edges are just beginning to brown, 10 to 12 minutes. Let cool on sheets for 5 minutes, then transfer to wire racks. Store cooled cookies in an airtight container.
Enjoy with a cup of green tea.