Preheat oven to 400 degrees. Combine flour, baking powder, baking soda, salt and 1/4 tsp cinnamon. Cut in butter until crumbly, using a pastry blender or two knives.
Separate the egg white and yolk. Set the egg white aside. In a separate bowl, mix egg yolk, honey, vanilla, and milk. Add to the dry ingredients and stir until just combined.
Form the dough into a ball on a sheet pan covered with a silpat mat. Roll out into a circle about 8 inches in diameter and a half inch thick. Cut into eight equal pieces. Try to handle to dough as little as possible.
Whisk the egg white until frothy. Brush over the top of the dough. Sprinkle about 2 tablespoons of brown sugar and some cinnamon over the scones.
Bake at 400 degrees for 10 to 12 minutes. I baked my scone for 9 minutes, but everything cooks faster in Vegas!
Mix together powdered sugar, milk, vanilla and cinnamon (to taste) until a glaze forms. Drizzle over scones after they bake.
