Combine together the flour, sugar, baking powder, baking soda and salt in a large bowl. Make a well in the centre and add the milk, buttermilk, vanilla and egg. Whisk the ingredients together until smooth.
Set the batter aside and allow to rest. Heat a nonstick pan over low-medium heat and wipe over with a little EVOO to lightly grease pan. Pour 1/3 cup of batter onto the pan and spread out gently into a round shape with the back of your ladle.
When the underside is golden and bubbles begin to appear on the surface, flip with a spatula and cook until golden. Repeat with remaining batter. Serve immediately.