Step 1

Preheat the oven to 400 degrees F. In the bowl of an electric mixer fitted with a paddle attachment, combine the flours, oats, baking powder, sugar and salt. Blend the cold butter in at the lowest speed and mix until the butter is in pea-size pieces. Combine the buttermilk, maple syrup and eggs and add quickly to the flour-and-butter mixture. Mix until just blended. The dough may be sticky.

Step 2

Dump the dough out onto a well-floured surface and be sure it is combined. Flour your hands and a rolling pin and roll the dough 3/4 to 1 inch thick. You should see lumps of butter in the dough. Cut into 3-inch rounds with a plain or fluted cutter and place on a baking sheet lined with parchment paper.

Step 3

Brush the tops with egg wash. Bake for 20 to 25 minutes, until the tops are crisp and the insides are done.

Step 4

To make the glaze, combine the confectioners' sugar, maple syrup and vanilla. When the scones are done, cool for 5 minutes and drizzle each scone with 1 tablespoon of the glaze. I like to sprinkle some uncooked oats on the top, for garnish. The warmer the scones are when you glaze them, the thinner the glaze will be.