Blueberry Scones with Honey and Walnut Butter

Name: Blueberry Scones with Honey and Walnut Butter
Prep time: 30 min
Cook time: 30 min
Total time: 30 min
Yield: 14 pieces
Ingredients: 350 g plain flour; 1 Tbsp baking powder; 1 pinch fine sea salt; 125 g unsalted butter; 80 g caster sugar; 180 g buttermilk; 200 g fresh blueberries; 2 Tbsp milk; 2 Tbsp Demerara sugar; 60 g walnut halves; 180 g unsalted butter; 120 g runny honey; 1 pinch fine sea salt