Preheat oven to 200 °C. Line a muffin tray with 12 muffin cups.
Prep dry mix
In a large bowl, combine 1 ¾ cup flour, 1 tsp baking powder, ½ tsp baking soda, 1 tsp cinnamon and a pinch of salt.
Prep wet mix
In a separate large bowl, add 2 eggs and beat until fluffy. Then add ¼ cup olive oil and ½ cup maple syrup and beat to combine. Add 1 cup Greek yoghurt and 2 tsp vanilla extract. Mix well.
Combine
Pour the wet ingredients into the dry and mix with a big spoon, until just combined.
Prep blueberries (if frozen)
In a small bowl, add 1 cup blueberries and 1 tbsp flour and toss until the blueberries are coated (this is to prevent the blueberries from sinking into the batter). Then add the blueberries to the batter mix and fold until just combined.
Bake
Using a spoon, divide the batter evenly between the muffin cups. Bake in the oven for 16-20 minutes, or until the muffins are golden brown on top and a toothpick comes out clean.
To serve
Leave the muffins to cool before removing them from the muffin tray.