Red onion perhaps another must in Sri Lankan cooking is also grown in Sri lanka. Sri lankans are very good at making a lot of food stuff with onions. One of them is 'pol sambol'. This is a mixture of spices like chilly, pepper, garlic, curry leaves,coconut and onions. The more onions you add to this combination, the tastier it becomes.
Another food Sri Lankans make out of Onions is 'Sini Sambol'. This combination too contains almost all the ingredients of 'pol sambol' except coconut and it also contains sugar. So imagine how amazingly delicious this combination of spices with a pinch of sugar.
It is believed that onions are good for insomnia and helps you to sleep properly. Onions are good for inflammation. Some people in Sri Lanka even apply onion juice on the hair because it is believed that it can prevent hair falling and make hair strong.