Preheat oven to 400 degrees F.
Mix together flour, brown sugar, baking powder, and salt. Cut in cold butter, using a pastry cutter or two knives, until mixture is in coarse crumbs.
Add in milk, vanilla extract, cinnamon and slightly beaten egg and mix until blended.
Lay dough out on a lightly floured surface and add in raisins, kneading dough just a few times to combine. Then form dough into a 9-inch disc (about 3/4-inch thick).
Using a pizza cutter (because that's all I had), slice dough into 12 equal pieces. Bake for about 15 minutes and allow to cool.
Meanwhile, whisk together powdered sugar, milk and vanilla extract in a bowl until smooth and then drizzle over cooled scones. Enjoy!