Preheat oven to 400º.
Line a cookie sheet with parchment paper.
Set aside.
In a large mixing bowl, place flour, granulated sugar, baking powder, baking soda and salt.
Stir or whisk well to combine ingredients.
Add cold butter and cut into mixture with a pastry blender until coarse crumbs form.
Add candied orange peel and stir again to combine.
Measure out buttermilk in a small measuring cup.
Add vanilla extract and orange juice and stir to combine.
Pour buttermilk mixture into flour mixture adding only enough to make a soft dough.
Measure out about 2/3 to a cup of flour.
Sprinkle about a quarter cup on the bread board.
Transfer dough to the floured bread board; sprinkle very generously with some of the flour; work the flour into the dough with your fingers.
Turn dough over about half way and sprinkle with more flour.
Continue this pattern and work the flour into the dough with your fingers.
This will take approximately 15-20 seconds to get most of the flour worked into the dough.
Pat dough into a 7-inch round.
Cut the dough into eighths.
Transfer the scones onto the parchment paper-lined cookie sheet.
Combine egg and cream in a small bowl with a whisk.
Brush each scone with egg/cream mixture.
Bake at 400º for approximately 20 minutes, or until a toothpick inserted in center comes out clean.
Remove scones to wire racks and cool approximately 10 minutes before adding glaze.
Add glaze and serve.