Preheat your oven to 400°F (200°C).
Line a baking sheet with parchment paper.
This prevents sticking and makes cleanup easy.
Add flour, sugar, baking powder, and salt to a large bowl.
Whisk everything together until well combined.
Add cold butter cubes to the flour mixture.
Use a pastry cutter to blend it in.
The mixture should look like coarse crumbs.
Mix sour cream, egg, orange zest, and orange juice in a small bowl.
Whisk until smooth and well blended.
Pour wet ingredients into the dry mixture.
Add cranberries now.
Stir gently until just combined.
Don't overmix the dough.
Turn dough onto a floured surface.
Pat it into a circle about 8 inches wide.
Cut into 8 equal wedges like a pizza.
Place scones on the prepared baking sheet.
Bake for 15-18 minutes until golden brown.
Let them cool for 5 minutes before serving.