My Blueberry Muffins

Preheat the oven to 180C, 360F, and gas 6 First, you need to prepare the topping by rubbing together the flour, demerara, and butter until you have a crumb like texture. To make the muffins, mix together the milk, vegetable oil, vanilla extract and beaten egg. Add the sugar, flour, baking powder, and salt, mix for a moment, just enough to moisten the flour, giving you a lumpy batter, keeping it slightly lumpy will ensure lighter muffins once cooked. Fold in the blueberries and then divide the mixture between your muffin cases filling them a good two thirds full. Scatter the streusel mixture over the top of each muffin and then put in the oven to cook for 20-25 minutes, until they are golden. Once cooked, cool slightly before leaving to cool further on a wire rack. Serve and Enjoy!