01 - Preheat oven to 400°F. 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 butter and cut it into the flour using a pastry blender or your fingertips until mixture resembles coarse crumbs.
04 - In a separate bowl, whisk together heavy cream, egg, and vanilla extract.
05 - Pour the wet mixture into the dry ingredients and stir gently until just combined.
06 - Fold in cranberries. Do not overmix.
07 - Turn dough onto a lightly floured surface and pat into a 1-inch thick circle, about 7 inches diameter.
08 - Cut into 8 wedges and arrange on prepared baking sheet, leaving space between scones.
09 - Brush tops with a little heavy cream. Bake for 16-18 minutes, or until golden brown.
10 - Remove from oven and cool on a wire rack.
11 - Whisk powdered sugar, orange juice, and orange zest until smooth and pourable.
12 - Drizzle glaze over cooled scones. Allow to set before serving.