Chai Spice Scones

1. Preheat the oven to 400°F and line a baking sheet with parchment paper or a silicone baking mat.
2. In a large bowl, whisk together the flour, 1/2 cup granulated sugar, baking powder, salt and 2 tsp chai spice.  Add in the cold diced butter.  Use your hands or a pastry cutter to work the butter into the dry mixture until it is broken down into smaller chunks and coated in flour. 
3. In a measuring glass, add 1 cup of heavy whipping cream and the vanilla extract.  Pour the liquids into the dry ingredients and use a wooden spoon or spatula to mix until the dough begins to come together.  Then gently mix in the chopped walnuts with your hands.
4. Transfer the dough to a clean lightly floured work surface.  Use your hands to shape the dough into two same sized disks, about 1/2 inch thick. 
5. Combine the remaining 2 tsp sugar and 1 tsp chai spice in a small bowl.  Sprinkle over the top of one of the rounds of dough, lightly pressing down to adhere.  Place the 2nd round of dough on top of the sugar coated one and gently pinch the outer edges together to seal.
6. Using a sharp knife, cut the disk of dough into 8 wedges.  Place the wedges on the prepared baking pan and place into the freezer for 15 minutes to rest.  After 15 minutes, remove from the freezer and brush the tops of the scones with additional heavy cream.
7. Bake for 20 minutes, until the edges are turning a light golden brown.  Allow to cool completely before glazing. 

Glaze

1. Combine all ingredients into a small bowl.  Whisk until completely smooth, adding in more sugar or milk as needed to reach the correct consistency.  The glaze should be thick enough to stick to the top of the scone but should still be pourable.  Drizzle glaze on top of the cooled scones.  Top with additional chopped walnuts if desired.