Healthy Waffles

1 1/3 cups all-purpose flour
2/3 cup oat flour
2 tsp baking powder
1 tsp baking soda
1 3/4 cups buttermilk
1/2 cup mashed ripe bananas
2 tbsp butter, melted
1 egg
1 tbsp maple syrup
1/2 tsp maple extract
1 cup low-fat vanilla-flavoured yogurt
Preheat waffle maker. Combine flour, oat flour, baking powder, and baking soda in a large bowl. Set aside.
Whisk together buttermilk, mashed bananas, melted butter, egg, maple syrup and maple extract in a medium bowl. Add wet ingredients to dry ingredients and mix just until dry ingredients are moistened. Do not over-mix!
Spray griddle lightly with cooking spray. Serve with maple syrup and butter.