Measure the 1/2 cup whole wheat flour, 1/2 cup all purpose white flour,1 teaspoon baking powder,1/2 teaspoon baking soda, 1/2 teaspoon salt in a small mixing bowl.
In a large mixing bowl whisk 1 egg, and stir in 1 cup buttermilk, 1 tablespoon sugar, 1 teaspoon vanilla, 4 tablespoons butter (melted).
Gradually combine the ingredients in the small bowl into the wet ingredients in the large mixing bowl. Stir until all of the ingredients are combined.
Drop 1/4 cup of batter onto a hot waffle iron, and spread the batter out if necessary. Close the waffle maker and cook for approximately 5 minutes (check with the instructions for your waffle maker)
Notes
The consistency of the batter should not be watery, but more like the consistency of honey. If the batter is too thin, add a little more flour and if it's too thick, add a little more water to thin it out.Store leftover waffles in an airtight container for 3 days or freeze leftover waffles for up to three months.Reheat leftover waffles in the oven, toaster or toaster oven. Microwaving is not recommended.