4 3/4 ounces all-purpose flour, approximately 1 cup
4 3/4 ounces whole-wheat flour, approximately 1 cup
1/2 teaspoon baking soda
1 teaspoon baking powder
1 teaspoon salt
3 tablespoons sugar
3 whole eggs, beaten
2 ounces unsalted butter, melted
16 ounces buttermilk, room temperature
Vegetable spray, for waffle iron