Recommended by locals, it's possibly the most famous CKT in Penang. You order at the tiny street stall and then wait in the cafe opposite. Expect to wait quite a while. I enjoyed it but it's unlikely to blow you away. The pieces of pork crackling give it a lift. RM5.50.
"The classic travelling food cart on 4 wheels. He cooks it over a perfected over the decades, wood fired wok and the smoky smooth appeal, is the reason for the lines wherever he drags his cha kway teow cart to."
— Ranked #14 at the World Street Food Top 50 2017
Note: I'm not sure if it's closed on Sundays or Mondays.