Line a 12-hole muffin tin with large or tulip paper cases (or make your own using 15cm/6in squares of baking paper). To make the crumble topping, put the flour, demerara sugar and hazelnuts in a ...
They have a yummy crunchy cinnamon crumble topping on top. They will keep for a few days in the pantry, a week in the fridge, or months if frozen. Makes 12 medium muffins.