Lemon and Blueberry Scones

Ingredients

• plain flour, plus more for dusting
• salt
• baking powder
• cold butter, cut into cubes
• Finely grated rind of one lemon
• caster sugar
• Irish Yogurts Clonakilty High Protein Natural Live Yogurt
• full-fat milk
• vanilla extract
• egg beaten with 1 tbsp milk, to glaze
• Blueberries