2 eggs
1 cup caster sugar
½ cup rice bran oil
1 tsp vanilla extract
2 cups + ½ cup plain flour
½ tsp salt
½ tsp baking soda
1 tsp baking powder
240g Tatua Sour Cream
1 cup fresh blueberries
½ cup butter, chilled
1 cup brown sugar
1 tsp ground cinnamon