½ cup plus 1 tablespoon cold heavy whipping cream, divided
2 large eggs, divided
½ teaspoon vanilla extract
Instructions
Preheat oven to 375°. Line a rimmed baking sheet with parchment paper.
In a large bowl, whisk together flour, sugar, baking powder, salt, and orange zest until combined. Using a pastry blender or 2 forks, cut in cold butter until it resembles coarse crumbs.
In a small bowl, whisk together ½ cup cold cream, 1 egg, and vanilla extract. Add to flour mixture, stirring until a dough begins to form. Working gently, bring mixture together with hands until a dough forms.
Turn out dough onto a lightly floured surface, and knead gently 4 to 5 times. Using a rolling pin, roll out dough to a 1-inch thickness. Using a 2-inch fluted round cutter dipped in flour, cut 13 scones from dough, rerolling scraps as needed. Place scones 2 inches apart on prepared baking sheet.
In a small bowl, whisk together remaining 1 tablespoon cold cream and remaining egg until combined. Brush egg mixture over tops of scones.
Bake until edges of scones are golden brown and a wooden pick inserted in centers comes out clean, 18 to 21 minutes. Serve warm.