Healthy Baked Onion Rings

Baked Onion Rings---Healthy Style~ Ingredients: 2 medium yellow onions (optional: sweet Vidalia onions) ¾ cup all-purpose flour 2 teaspoons baking powder 3 large eggs 1½ cups fine dry breadcrumbs, preferably whole-wheat (see Note) 1 tablespoon seasoning blend, such as Cajun, jerk or Old Bay Olive oil or canola oil cooking spray Preparation: Position racks in [...]