01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Whisk together flour, sugar, baking powder, salt, cinnamon, ginger, cardamom, cloves, nutmeg, and finely ground black tea in a large bowl.
03 - Add cold cubed butter to dry mixture. Cut in using a pastry cutter or fingers until mixture resembles coarse crumbs.
04 - In a separate bowl, whisk milk, egg, and vanilla extract until blended.
05 - Pour wet ingredients into dry mixture. Stir gently with a fork until just combined; avoid overmixing.
06 - Turn dough onto a lightly floured surface. Pat into a 1-inch thick circle.
07 - Cut dough into 8 wedges and place on prepared baking sheet.
08 - Brush tops with heavy cream or milk and sprinkle with turbinado sugar if desired.
09 - Bake for 16 to 18 minutes, or until golden brown.
10 - Allow scones to cool slightly before serving.