Sour pho Phở chua
Phở chua is Cao Bang’s sour noodle bowl, not a hot beef pho: rice noodles under roast duck, crisp pork belly, and smoked sausage, dressed in a vinegar sauce thickened with canna starch and seasoned with sugar, garlic, and chili. The sauce is mildly sour and lightly sweet, and fried sweet-potato threads, crushed roasted peanut, cucumber, and herbs go on last.
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Báo Cao Bằng on 21 May 2026 calls the sauce mildly sour and lightly sweet, and names the crisp potato, the fatty meat, the nutty peanut, and the herbs.
How to enjoy it
Some bowls take a little duck broth before the sauce and some come with only the sweet-sour dressing. Eat it in town at breakfast or midday, and know that morning service in Thục Phán ward is limited.
Where to try it
Cao Bang city, at breakfast or midday. Morning service in Thục Phán ward is limited.