OVEN BAKED ONION RINGS Ingredients 1 large white or yellow onion, peeled, sliced, and separated into rings 2 egg whites 2 tablespoons milk ½ teaspoon garlic powder ¼ teaspoon cayenne pepper 2 cups bread crumbs ⅓ cup flour salt + pepper, to taste cooking spray sauce ⅓ cup mayo ¼ cup ketchup 1 teaspoon