As with almost all Indian food, spices play an important part in Kerala cuisine. The main spices used are cinnamon, cardamom, ginger, green and red peppers, cloves, garlic, cumin seeds, coriander, turmeric, and so on. Few fresh herbs are used, unlike in European cuisine, and mainly consist of the commonly used curry leaf, and the occasional use of fresh coriander and mint. 
Tamarind, kodampuli (Garcinia Cambogia), and lime are used to make sauces sour, as sour sauces are very popular in Kerala. Sweet and sour dishes are however, rare, but exceptions like the ripe mango version of the pulissery and tamarind-jaggery-ginger chutney known as puliinji or injipuli are popular.

Breakfast
Spices in Kerala Cuisine
Sweets and Desserts
Food offerings in rituals