Baking ratio for waffles!
You cannot find a "golden ratio" as there is no such thing for something as diverse as "waffles":


Brussels Waffles
Liège Waffles
Butter waffles
Vanilla waffles
Blueberry waffles
Honey Waffles
...


Just take a recipe for waffles that resembles the kind of waffles you want to make and substitute one ingredient for another (In this case, I'd start with a blueberry waffle recipe and change the blueberries with oranges cut up in cubes as big as blueberries).