Spicy onion is quite a well-known dish and is a popular alternative for most vegetarians. Spicy onion recipes can be prepared in a number of different ways, however, spicy onion rings is quite a favorite with most people. Most spicy onion recipes are easy to follow as they give step-by-step details on how to make spicy onion dishes. Preparing spicy onion recipe is quite easy and even this particular recipe of spicy onion rings can be prepared without any fuss or hassle with a short time. The ingredients required to prepare spicy onion rings include onions, buttermilk, all-purpose flour, salt, chili powder, red pepper, sugar and oil. The onions need to be cut into thin slices and then soaked in buttermilk for an hour. Coat the onions with a mixture of flour, salt, chili powder and pepper and then fry it in oil till it turns golden brown. Once the onion rings turn crispy, they can be placed on paper to remove excess oil and served with tartar sauce or even ketchup. Spicy onion is quite delicious and can even accompany a number of main course dishes.