Quick Answer: What Is Sea Cucumber with Scallions?
Congshao haishen (葱烧海参, cōng shāo hǎi shēn) is a Shandong dish combining prepared sea cucumber with richly fragrant scallions and a glossy sauce. Its appeal lies in soft, elastic texture and concentrated scallion aroma.[1]
- Sea cucumber is a marine animal, despite its vegetable-like English name.[2]
- Scallion oil gives the dish its defining fragrance.[4]
- A Beijing restaurant tradition also preserves this Shandong method.[5]
A dried sea cucumber and a ready-prepared one are different starting ingredients; the dish’s finishing method does not replace the preparation they require.

This Shandong cuisine classic is easier to understand by separating the ingredient’s texture from the flavor built around it.
A Soft, Springy Seafood Texture
The desired sea cucumber is soft and supple, retaining elasticity rather than becoming a firm slab or dissolving. A red-brown gloss coats its surface, and the fried-scallion fragrance carries through each bite.[1]
The unfamiliar English name can give the wrong expectation. Sea cucumbers are saltwater invertebrates related to sea stars and sea urchins. They are not crunchy garden cucumbers, and this is not a vegetable dish.[2]
If trying it for the first time, take a small piece with some sauce and cooked scallion. That combination gives a clearer idea of the dish than tasting the sea cucumber separately and expecting it to behave like a flaky piece of fish.
Sea Cucumber, Scallions and the Sauce
Three component groups explain the dish:[3][5]
- Prepared sea cucumber: a cleaned, suitably softened ingredient ready for the cooking stage.
- Scallions and flavored fat: substantial scallion sections plus fragrant scallion oil, or cong you (葱油, cōng yóu).
- Stock and seasoning: a documented preparation uses chicken stock, soy sauce, cooking wine, sugar, ginger and a light starch thickening; it also includes lard and oyster sauce.
How Scallion-Braised Sea Cucumber Is Made
The following sequence describes the main cooking jobs after the sea cucumber is prepared. It is not a complete dried-product soaking guide or a measured home recipe.[3]
- Prepare the main ingredient: clean the hydrated sea cucumber and soften it in stock.
- Develop the scallion aroma: fry scallion sections golden and prepare fragrant scallion oil.
- Cook with stock and seasonings: combine the prepared ingredients and cook gently together.
- Finish the glaze: reduce and lightly thicken the sauce; finish with scallion oil.
A restaurant demonstration also shows why the scallion is not a single-purpose ingredient: its ends were used for fragrant oil, while the middle sections were reserved for the finished dish.[4]
Shandong Roots and a Beijing Restaurant Tradition
On the Shandong coast, Fushan in Yantai presents scallion-braised sea cucumber as a representative dish of its Lu-cuisine craft. It was included in the province’s 2025 selection of one hundred intangible-heritage foods.[1]
A prominent Beijing example is Fengzeyuan (丰泽园, fēng zé yuán), a restaurant founded in 1930 that brings together Jinan and Jiaodong cooking. Its own craft account specifies spiny sea cucumber from the Shandong Peninsula and large scallions from Zhangqiu.[5]
This is a useful regional relationship: Shandong ingredients and cooking traditions are transmitted and developed in the capital. A Beijing presentation does not automatically turn the dish into an unrelated cuisine. Readers exploring that broader setting can continue with what to eat in Beijing.
Ordering the Dish and Understanding Variations
Ask whether the order is a whole prepared sea cucumber or cut pieces, how many diners the portion serves, and which stock and fat are used. These questions clarify what will arrive without assuming one standardized restaurant portion.
For cooking, match a dedicated recipe to the product you actually have. Sea cucumber is sold in dried, frozen and ready-to-eat forms; these cannot all be treated as though they begin at the same stage.[4] Follow the product’s preparation directions before applying a final braising method.
FAQs About Sea Cucumber with Scallions
Is sea cucumber a vegetable?
No. It is a marine animal in the echinoderm group, related to sea stars and sea urchins.[2]
Can dried sea cucumber go straight into the braising sauce?
No. The documented cooking sequence starts with water-prepared sea cucumber. Dried-product preparation is a separate job, so use directions suited to that product.[3]
Are scallions only a garnish?
No. They supply both the aromatic oil and substantial cooked sections. The scallion is a central ingredient, not just a finishing decoration.[4]
Fuentes
[1] Fushan District Culture and Tourism Bureau. Scallion-Braised Sea Cucumber in Shandong’s Heritage-Food Selection
[2] NOAA National Ocean Service. Are Sea Cucumbers Vegetables?
[3] Xu Changlin, via Qilu Evening News. Wang Yijun and a Scallion-Braised Sea Cucumber Preparation
[4] CCTV, Daily Agricultural Economy. Fengzeyuan’s Sea Cucumber: A Kitchen and Ingredient Report
[5] Fengzeyuan, China Quanjude Group. Lu-Cuisine Craft and Scallion-Braised Sea Cucumber