Turn on the waffle maker to your desired waffle crispness level. (I prefer mine golden with a slightly crispy exterior). If you're keeping them warm, preheat oven to 200°F (93°C).
Combine the dry ingredients. In another bowl, whisk together the buttermilk and the eggs.
Create a well in the dry ingredients by pushing them to the outer edge of the bowl, forming a "hole" in the middle. Pour in the egg mixture. Whisk until ingredients just combined, with no clumps.
Pour butter in a slow stream, stirring until butter is incorporated.
Pour ½ cup of batter into waffle iron and make waffles! Keep warm in preheated oven on a baking sheet.
Serve with melted butter, maple syrup, fruit and/or whipped cream.