01 -  Preheat oven to 400°F. Line a baking sheet with parchment paper. 
 02 -  In a large bowl, combine flour, sugar, baking powder, salt, and chai spice blend. Whisk thoroughly. 
 03 -  Add cold butter cubes and cut in using a pastry blender or fingers until mixture forms coarse crumbs. 
 04 -  Whisk pumpkin puree, sweet tea, egg, and vanilla in a separate bowl. 
 05 -  Pour wet ingredients into dry mixture and stir gently until just combined. 
 06 -  Beat cream cheese, powdered sugar, and vanilla extract together until smooth. 
 07 -  Turn dough onto a lightly floured surface and pat into a 10x7 inch rectangle approximately 3/4 inch thick. 
 08 -  Gently spread cheesecake filling over half the rectangle. Fold remaining dough over to cover filling and press edges lightly to seal. 
 09 -  Cut filled dough into 12 triangles and place scones on prepared baking sheet, spacing slightly apart. 
 10 -  Bake for 20 to 22 minutes until golden brown. Cool scones on a wire rack. 
 11 -  Whisk powdered sugar with 2 to 3 tablespoons sweet tea until smooth and pourable. Drizzle glaze over cooled scones.