1
: Preheat oven to 425°F (220°C). Line a baking sheet with parchment paper.
2
: Scones: Combine in a large bowl, flour, sugar, baking powder and salt. Add lemon zest if using. Cut in shortening with pastry blender or fingers until mixture resembles coarse crumbs.
3
: Combine, in a medium bowl, milk and eggs. Add to flour mixture. Add berries and white chocolate. Be careful not to over mix.
4
: Place the dough on a lightly floured surface. Shape the dough into a square that is 1” (2.5 cm) thick. Cut into 16 pieces.
5
: Arrange scones on prepared baking sheet. Bake in preheated oven 20 to 23 minutes, until lightly golden.
6
: Glaze: Combine icing sugar, milk and vanilla in a bowl. Stir to incorporate icing sugar. Drizzle over scones when they come out of the oven and again 10 minutes later.