01 - Preheat oven to 400°F and line a baking sheet with parchment paper.
02 - In a large bowl, whisk together flour, sugar, baking powder, salt, and orange zest.
03 - Add cold cubed butter. Using a pastry cutter or fingertips, cut butter into the flour until mixture resembles coarse crumbs.
04 - In a separate bowl, whisk together heavy cream, egg, and vanilla extract.
05 - Pour wet ingredients into dry mixture. Add cranberries. Stir gently with a fork until dough just comes together. Do not overmix.
06 - Turn dough onto a lightly floured surface. Pat into a 1-inch thick circle (about 8 inches wide). Cut into 8 wedges and arrange on prepared baking sheet, spacing slightly apart.
07 - Brush tops with a little extra cream for a golden finish.
08 - Bake for 16-18 minutes, until scones are golden and cooked through. Cool on a wire rack.
09 - For the glaze, whisk powdered sugar, orange juice, and orange zest until smooth and pourable. Drizzle over cooled scones.