Preheat Oven to 200°C / 392 °F or 180° C Fan forced oven. Line a muffin tray with liners. If you are not using liners brush the tray with oil or butter.
Whisk the flour, bicarb and baking powder in a bowl.
In a separate bowl add all the wet ingredients along with sugar and whisk it until smooth.
Add the mixture to flour and mix together. Add blueberries and gently fold them in. Don't over mix.
Pour the batter into tray and bake at 200°C for 15 - 20 minutes. The top should become light golden and stick a tooth pick in, if comes out with moist crumbs it means they are ready.
Notes
Muffins can be kept for 5 days in room temperature in air tight container. In warmer weather they can be refrigerated for 1 week. They can also be frozen for up to a month. Just thaw them and slightly heat them in microwave before serving.