Gula nisan, also known as palm sugar, is a traditional sweetener made from the sap of palm trees, usually coconut or nipa palm.

The sap is boiled until it thickens, then shaped into solid blocks or cones. It has a rich caramel-like flavour, a deep golden-brown colour, and a slightly smoky aroma that comes from the natural cooking process.

Gula nisan dissolves easily when heated, making it ideal for traditional desserts, drinks, and savoury dishes. It is valued for its natural sweetness and unique taste, which is more complex than regular white sugar.