sugar, palm

Palm sugar is produced by tapping the sap of Arenga pinnata (sugar palm), Borassus flabellifer (palmyra palm), or coconut palms (Cocos nucifera) and concentrating it by boiling. Unlike cane sugar, which is refined to near-pure sucrose, palm sugar retains trace minerals and caramelized flavor compounds from the sap that give it a complex, multi-dimensional sweetness: caramel, toffee, butterscotch, and a faint floral-tropical note. In Thai cooking, palm sugar (nam tan pip — round cakes) is the preferred sweetener for pad thai, for coconut-based curries, and for sauces where a rounded sweetness is needed. The lower glycemic index compared to refined cane sugar is a secondary consideration. Palm sugar from different sources varies in flavor: coconut palm sugar has a mild butterscotch quality; arenga sugar is more complex. Substitution: dark brown sugar with a small amount of honey approaches the flavor but doesn't fully replicate the complex caramel character.