Preheat oven to 375 degrees F.Toast the oats. Spread them on a cookie sheet and bake at 375 degrees F for 8-10 minutes or until they are fragrant. Remove from heat and let cool. Set aside 2 tablespoons of oats to use as scone topping.
Raise oven heat to 450 degrees F.
In a food processor, combine the flour, sugar, baking powder, salt and cinnamon. Pulse 4 times to mix. Add butter chunks to flour mixture and pulse until mixture is the size of small peas.
In a mixing bowl, whisk together the egg, cream, milk, and vanilla. Spoon out 1 tablespoon and set aside. You will use this for brushing tops.
Add the flour mixture and the oats to cream mixture and stir until almost mixed. Add the raisins (if using) and continue mixing just until mixture comes together in a ball.
On a lightly floured surface, shape the ball into a 7 inch circle (about 1 inch thick). With a floured knife, cut into 6 or 8 wedges, and place wedges 2 inches apart on a non-stick or parchment lined baking sheet.
Brush with reserved cream mixture and sprinkle with reserved oats and if desired, some sparkling sugar and extra cinnamon. Bake 12-14 minutes (Check at 10), rotating pan halfway through.