Name: Blueberry Muffins
Cook time: 55 min
Yield: 12
Ingredients: 225 g (8 oz) plain flour; 2 tsp baking powder; 1 tsp cinnamon ground; 1/2 tsp sea salt mill adjustable; 125 g (5 oz) unsalted butter, soft; 125 g (5 oz) caster sugar; 2 large eggs, room temperature; 2 tsp vanilla extract; 125 g (5 oz) full fat Greek yoghurt; 125 g (5 oz) blueberries, whole; 100 g (4 oz) blueberries, mashed with a fork; 25 g (1 oz) demerara sugar