3 cups unbleached flour
3/4 cup granulated sugar
4 teaspoons baking soda
1 teaspoon salt
4 large eggs lightly beaten
2 cups buttermilk
2 teaspoons pure vanilla extract
1/4 cup lemon juice (fresh is better but not always practical)
2 tablespoons lemon zest
3/4 cup butter melted and cooled till near room temp
2 cups low-fat vanilla yogurt
Combine the dry ingredients (flour, sugar, baking soda, and salt) in a large mixing bowl. Whisk to combine. Add the eggs, buttermilk, and vanilla. Whisk until blended. Stir in the lemon juice and zest. Finally, fold in the butter and yogurt.
After you are done making the waffle mix, plug in your waffle iron and let your batter rest (for about 5 minutes). Bake according to your waffle iron directions.