Don't be surprised; this place is indeed a local mafia-themed cafe in Aqueen Heritage Hotel (Joo Chiat) named after the notorious Singapore gang in the past. That being said, the servers are all pretty polite here, and they serve local fare here with more substantial options such as Curry Chicken, Laksa and Mee Rebus/Mee Siam. Ah Kong Tradition would be the local breakfast set; Kaya/Kaya Butter/Peanut Butter Toast with soft-boiled eggs and Kopi/Teh for $4.60. The soft boiled eggs are already cracked upon serving, and were runny — very familiar, and very close to the heart. I love it that they use white bread for the toast here; utterly crisp and stuffed with a slab of butter and just enough Kaya in between, it achieves a good balance of both worlds. Kopi was also pretty aromatic, and not overly sweet from too much condensed milk. Overall quite decent, and serves as a slightly upscale Toast Box/Ya Kun/Killiney with way stronger air con (it's freezing here as I type) and bigger, more comfier seating and a classier environment.

Ah Kong Den is located at 51 Joo Chiat Road, Singapore 427373 within Aqueen Heritage Hotel (Joo Chiat).