Sift the flour and baking powder in to a large bowl, then stir in the salt and sugar. Add the Stork and using your fingertips, rub in to the flour until it resembles bread crumbs. Stir in the blueberries.
In a jug, whisk together the soured cream, egg and Nielsen-Massey Vanilla Extract. Add to the dry ingredients and mix with a round bladed knife, then bring together the mixture with your hands to form a soft dough. It’s important not to over-mix or knead the dough to keep the scones light.
Roll out the dough on a lightly floured surface to about 2 cm thick and cut out 8 rounds using a 6cm round cutter. Transfer to a lightly greased baking tray. Brush the tops with a little beaten egg and sprinkle with caster sugar.
Bake in the oven for 10-12 minutes until risen and golden. Transfer to a cooling rack.
Meanwhile, put the strawberries in a bowl. In a small pan, gently heat the sugar, Nielsen-Massey Vanilla Bean Paste together with 1-2 tbsp water, until the sugar has dissolved, then simmer for 2 mins until syrupy. Pour over the strawberries, toss and leave to cool until ready to serve.
Serve the warm scones with a dollop of clotted cream and the vanilla strawberries.