Bao Seoul Seongsu (바오서울 성수)

Bao Seoul Seongsu (바오서울 성수) is a fast-casual Taiwanese bao specialist tucked into the Yeonmujang-gil corridor that has become Seongsu's de facto food street. The kitchen turns out pillowy steamed buns with bold, bold fillings — the Seoul Beef Bao layers sweet-and-savory bulgogi grilled to a slight char inside a fluffy bao that delivers exactly the contrast you want in a bun-and-filling format. The Chicken Katsu Bao is a Seongsu-friendly take on the Taiwanese gua bao, with crisp fried chicken cutlet replacing the traditional pork belly, while purists can still get classic preparations alongside lamb and shrimp variations that have built a quiet cult following. Sides matter at Bao Seoul: the kimchi fries are a runaway favorite, layering crispy fries with fermented heat, and the Dongpo pork rice has earned consistent praise for its balanced flavors and quality ingredients. The space is small and can feel cramped during peak hours, and the kitchen takes a midday break between 15:30 and 17:00, so plan your visit accordingly. Bao Seoul also has sister locations in Chungmuro and inside The Hyundai department store, but the Seongsu original is where you go for the neighborhood atmosphere. With 325 Google reviews and a 4.8-star rating, it has earned its spot in the Taiwanese-in-Seoul conversation.