These scones really ARE the best scones I've ever had, and I used to be a professional pastry chef.
I made a few minor changes to adjust them to what I was looking for- I added vanilla, substituted white and semi-sweet chocolate chips for the currants, and left off the egg wash. And I just pulled the dough apart into 8 pieces (the way I used to at the bakery) and baked them that way, without shaping them. After they came out of the oven, I drizzled them with a vanilla/confectioner's sugar icing. Thy were very sweet this way, but just what I was looking for. The sour cream gave them a great flavor and texture,