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 cubed butter to the dry ingredients. Using a pastry cutter or fingertips, work butter into flour until mixture resembles coarse crumbs.
04 - In a separate bowl, whisk heavy cream, egg, and vanilla extract until blended.
05 - Pour wet ingredients into the dry mixture. Add cranberries, stirring gently with a fork until dough just comes together. Avoid overmixing.
06 - Turn dough onto a lightly floured surface and pat into a 1-inch thick circle, approximately 8 inches in diameter.
07 - Cut the dough into 8 wedges and place on prepared baking sheet, spacing them slightly apart.
08 - Brush scone tops lightly with a little extra cream for a golden finish.
09 - Bake for 16 to 18 minutes, until golden and cooked through. Transfer to a wire rack to cool.
10 - Whisk powdered sugar, orange juice, and orange zest until smooth and pourable. Drizzle glaze over cooled scones.