In a medium mixing bowl, combine flour, baking powder and salt.

In a separate bowl, beat egg yolks slightly. Stir in milk, orange juice, oil, vanilla, and orange zest.

Add egg yolk mixture to dry mixture and stir just until moistened.

In another bowl, beat egg whites until stiff peaks form.

Gently fold egg whites into other mixture, leaving a few white streaks. Do not overmix!

Pour batter onto a preheated, greased waffle maker.

Top with fresh blueberries and warm vanilla maple syrup.