In a medium/large bowl, whisk together 1/2 cup of EVOO, buttermilk, eggs, vanilla extract and 1 cup sugar. In a separate medium bowl, whisk 1 1/2 cups flour, baking powder, baking soda and salt to combine. In a medium/large bowl, whisk together 1/2 cup of EVOO, buttermilk, eggs, vanilla extract and 1 cup sugar. In a separate medium bowl, whisk 1 1/2 cups flour, baking powder, baking soda and salt to combine.