If you ever drop by Bidor, a small town about 1 hour from the main city of Kuala Lumpur, make sure you visit Pun Chun Chicken Biscuit & Restaurant. Famous for its homemade biscuits and also Wan Tan Noodles. Apart from that it's also their Duck Noodles Soup that is fantastic.
So, after filing up your stomach, walk around the shop and you're bound to buy the local biscuits and snacks for your family & friends.