Ayam Masak Arak is a Foochow confinement dish from Sibu, Sarawak. If you're not from that community, you may have only seen it at Sarawakian kopitiam or at a friend's mum's place after she gave birth. It's chicken braised in ang chao, which is red glutinous rice wine, cooked down with sesame oil and ginger until the sauce is fragrant and slightly sticky. At 530 calories for a solid serving, it's not a diet dish. The two big calorie drivers are the sesame oil, about 180 calories from just 1.5 tablespoons, and the chicken thigh and drumstick fat. On the protein side, 30g is decent. Worth flagging: these numbers are a ballpark estimate because hard nutritional data for this dish basically doesn't exist, so there's genuine uncertainty of maybe plus or minus 60 to 80 calories per serving.
What actually moves the number is mostly the oil. A soup-style version with more wine broth and less sesame oil drops the count to around 380 calories for the chicken and broth alone. The rich confinement version with extra sesame oil and wine can hit 680 calories for the same portion size. If you're eating it at home or at a kopitiam, ask for less oil in the braising if you can. Choosing breast over thigh would cut maybe 40 to 60 calories from the chicken portion. The ang chao wine and dregs themselves only add about 75 calories from the 70g in a standard serving, so the wine isn't the villain here.