In a large mixing bowl, whisk together the flours, baking powder, baking soda, and salt.
In another bowl, whisk the eggs. Add the buttermilk and oil. Whisk well.
Add the wet ingredients to the dry and stir well to combine.
Bake in a hot waffle maker.
Serve with butter and maple syrup or freshly whipped cream and berries.
To make as a mix: Take a large ziptop bag or container and label it with the wet ingredients and the baking instructions. Measure out the dry ingredients into the bag. Seal and store until ready to use.To prepare the waffles in advance, prepare the recipe as directed. Cool the waffles on a rack and store in an airtight container for up to 3 days. Freeze for longer storage.