Preheat the oven to 400 degrees. Spray a baking sheet with cooking spray.

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

Add in the butter in small portions and mix together with your hands until it is coarse and resembles wet sand.

Add in the egg, sour cream, and vanilla and mix well until a dough forms.

Stir in the chia seeds.

Fold in the blueberries and strawberries.

Turn onto a floured surface and shape into a rectangle. Cut the rectangle into 6 pieces then cut each piece diagonally to form 12 triangles.

Place the triangles on the baking sheet and bake for 15-17 minutes or until they are browned. Remove from oven and transfer to a wire cooling rack to cool completely.

To make the glaze combine the powdered sugar and lemon juice and mix well.

Drizzle over top of cooled scones and allow to sit for 10 minutes or until glaze has hardened.