Method
1. Pre-heat oven - 170°C
2. Line 2 clean muffin pans with paper muffin cups
3. Add egg, milk, dark brown sugar, granulated sugar and vanilla extract to a clean large mixing bowl
4. Mix until just combined
5. Add sunflower oil to the batter
6. Beat together until combined
7. Add all purpose flour, salt and baking soda to a clean medium bowl
8. Whisk briefly
9. Transfer dry ingredients to batter
10. Mix until combined
11. Transfer batter to 2 muffin pans
12. Add blueberries to a clean small bowl
13. Press fruit into 2 muffins gently
14. Bake until golden brown - 20 min, 170°C
15. Transfer onto cooling rack