Inside Kafe Ping Hooi. Options are no egg (RM6), chicken egg (RM6.50) and duck egg (RM7). I had the duck egg version with chilli. It came with 2 large prawns. Very tasty!
Note: Open most days until 2pm. I asked what days they're open and they said "When we're tired, we close". They gave me their business card and said to phone ahead to check if they're open.