Chop up apple into very small pieces
Add chopped apple, yogurt, eggs, vanilla, and sugar in a large bowl. Stir until combined
In a separate bowl, whisk together flours, oats, baking powder, cinnamon, salt, and any other spices you would like.
Add flour mixture into wet ingredients and stir with a wooden spoon until combined. Pour in milk to loosen batter.
Scoop batter into pre-heated and greased waffle maker.
Cook for 3-4 minutes or until golden brown.
Top with syrup, peanut butter, almond butter, nuts, fruit, or anything you would like