Overview of Coconut Milk and its Usage Coconut milk, also known as “santan” in some Southeast Asian countries, is derived from the flesh of mature coconuts. This plant-based milk has been a staple ingredient in many cuisines around the world for centuries, and it has gained immense popularity in recent years due to its numerous health benefits and versatility. Coconut milk is commonly used in curries, soups, stews, and desserts as a natural thickener and sweetener.