Preheat the oven to 425 degrees.

In a large bowl combine the flour, sugar, baking powder and salt.

Cut the butter into pieces and add them to the bowl. Using your hands, combine the butter with the flour mixture until it resembles wet sand.

Add in the milk and egg and mix until combined.

Add in the blueberries and mix gently.

Press the dough into a round on a cutting board. Cut into 8 pieces and place each piece on a baking sheet.

Bake for 15-18 minutes or until the scones begin to brown. Cool completely on a wire rack.

To make the glaze whisk together the powdered sugar and lemon juice. Drizzle over top of the scones and serve.