Name: Oven baked onion rings
Prep time: 10 min
Cook time: 20 min
Yield: 4
Cuisine: American
Ingredients: Cooking spray; 600g baked potato crisps; 1/2 tsp cayenne; 250ml lowfat buttermilk; 150g plus 2 tbsps plain flour; 1/2 tsp salt; 1/4 tsp fresh ground black pepper; 1 to 2 large Vidalia onions, peeled