Preheat oven to 200°C/400°F (Gas 6). Grease a muffin tin.
Beat egg with a fork. Then stir in milk and oil. Sift flour into a large bowl. Add sugar, baking powder and salt. Add egg mixture to flour and stir until flour is moistened and lumpy, if the mixture is smooth then you have over mixed it.
Fill muffin cup cases 2/3 full. Bake for 20 to 25 minutes until golden brown.