Sift flour into large bowl.

Add sugar, baking powder, baking soda, salt & stir.

Add cold cubed OR grated butter. Work into the flour mixture with your hands or a pastry cutter.

Stir in egg, heavy cream, & vanilla. Stir in blueberries.

Roll dough out to a circle of 1 inch thickness. Cut into 8 slices.

Place on a pan lined with parchment paper & brush with some heavy cream & sprinkle with sugar. Bake 20-25 minutes at 400F. Bake until golden brown on top.

For optional lemon glaze, add ingredients into a bowl. Drizzle on scones after cooled.