Apologies...pals sugar...not vinegar.   

Palm sugar is a sweetener derived from any variety of palm tree. Palm sugar is sometimes qualified by the type of palm, as in coconut palm sugar.   You could substitute it with brown sugar.  

 The marble mortar and pestle are made her on the island.  I love using them. 
 https://image.nostr.build/0663c2283b31757e48007c087a83f29dddf2e9aa018d221d027eb1ec756c8df3.jpg