These culinary elements were gradually incorporated into local food traditions across both mainland and island Southeast Asia. In the Indianised state of Funan, Indian influence played a key role in shaping early Cambodian culture through the introduction of religion, writing systems and artistic forms. According to archaeologist Dr. Ea Darith, these cultural elements were adopted selectively rather than imposed. Indian spices and cooking methods contributed to the development of kroeung, a characteristic Khmer spice paste composed of galangal, turmeric, lemongrass and other local aromatics. When combined with prahok (fermented fish paste), kroeung forms the flavour base for many Cambodian dishes, such as somlar m’chu kroeung sach ko (a kroeung-based sour beef soup).