Preheat waffle iron to your desired setting.
Add the egg and blend on highest speed for about one minute. You can also add a little more buttermilk at this time if you notice your batter is too thick (no whirlpool/vortex).
Briefly blend in the baking powder, baking soda and salt just until blended
If you have problems with waffles sticking in your waffle iron- brush some olive or coconut oil in the wells. Pour the batter in hot waffle iron. Cook until desired doneness.
Top with your choice of toppings: butter, maple syrup, fruit, whipped cream, peanut butter, etc.
Leftover waffles can be wrapped tightly and stored in the refrigerator for a couple of days or in the freezer for a few weeks. Reheat briefly in toaster.