I've tried the roti canai of many stalls and coffeeshops in Taiping as my partner is a great fan of the roti. Rahman (corner) coffeeshop, near the esplanade and Registration Dept (beautiful white colonial building) sells a mind-boggling variety of roti jong and roti canai. Try roti tisu (tissue) if you're feeling adventurous - it's crisp with Milo sprinkled on it! Wish you a wonderful and safe trip.