Since fresh coconut water deteriorates so quickly once it is exposed to air, it is best obtained and consumed in the tropics where it can be purchased fresh, with all the nutrients and enzymes in tact.
This recipe, featuring beef simmered for hours in coconut milk and fresh curry spices, undoubtedly was prepared with water buffalo in its original form, since beef is uncommon in Malaysia and Indonesia.
I substituted organic coconut oil for the butter and water with some vanilla (since I didn't have any coconutwater that I wanted to use) for the milk and it tastes great — especially along with fresh organic blueberries.