01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Whisk together flour, matcha, sugar, baking powder, and salt in a large bowl until evenly distributed.
03 - Add cold cubed butter to the dry mixture. Use a pastry cutter or fingertips to work butter into flour until mixture resembles coarse crumbs with pea-sized butter bits remaining.
04 - Whisk together milk, egg, and vanilla extract in a separate bowl until fully combined.
05 - Pour wet ingredients into dry mixture. Add dried cranberries. Fold gently with a spatula just until dough begins to come together—avoid overmixing to prevent tough scones.
06 - Turn dough onto lightly floured surface. Pat gently into a 1-inch thick round disc, handling minimally to keep butter cold.
07 - Cut disc into 8 equal wedges. Transfer to prepared baking sheet, spacing 2 inches apart to allow for even baking.
08 - Brush tops lightly with milk. Sprinkle with coarse sugar if using for added crunch and sweetness.
09 - Bake for 16-18 minutes until scones are set and edges are lightly golden. They should feel firm when gently pressed in the center.
10 - Let scones rest on baking sheet for 5 minutes, then transfer to wire rack to cool completely. Serve warm or at room temperature.