The night market at the end of GuangFu Road (Garden Street), otherwise rather disappointing, has a very popular shop selling food from Singapore. It is located close to the entrance of the night market. The curries and fried noodles start from around NT$60. The night market here is one of the few places to find real homemade American style cookies but the vender is not always there. If you really have a craving you can order them and have them delivered by calling 0973200868.
There's a night market on NanDa Road behind the train station every Tuesday and Thursday. Follow the crowds, you can't miss it.