Siu Mai

燒賣zh-Hant烧卖zh-Hanssiu1 maai6yueshāomàicmn

Also: Shumai, Shao Mai, Sio Mai

Siu mai is an open‑topped, steamed wheat‑flour dumpling filled with a seasoned mixture of pork and prawns, traditionally topped with fish roe or a carrot slice.

Identity criteria

1Open‑topped dumpling shape (no top wrapper)
2Steamed cooking method
3Primary filling of pork and prawn (or shrimp)
4Wheat‑flour wrapper surrounding sides and bottom
5Typically topped with fish roe or a carrot slice

Components

Base

wheat‑flour wrapperessentialforms the cup that holds the filling

Protein

pork (ground or minced)essentialprovides savory body

prawn or shrimpessentialadds sweetness and texture

Aromatics

ginger, scallion, garlicoptionaltypical aromatic boost

Fat

sesame oiloptionaladds richness and flavor depth

Acid

rice wineoptionalbalances richness and tenderises meat

Liquid

wateressentialneeded for wrapper dough

Binder

cornstarchoptionalhelps bind filling and retain juices

Seasoning

soy sauce, salt, sugar, white pepperessentialcore flavor foundation

Garnish

fish roe (or carrot slice)essentialdefines visual identity and adds textural pop

Technique

Steaming: cooks the filling while keeping the wrapper soft and pliable
Mixing filling: ensures even distribution of proteins, aromatics, and seasonings for consistent flavor and texture
Forming open‑topped wrapper: creates the characteristic cup shape that holds the filling without a top skin
Adding garnish (roe/carrot): provides color contrast, textural bite, and visual hallmark of the dish
Resting dough (if making wrapper from scratch): relaxes gluten, making the dough easier to shape and less prone to tearing

Form & serving

Served: on a small plate or in a bamboo steamer basket
Temperature: served hot, steaming
Portion: 3–5 pieces per person in a typical dim sum serving
Pairs with: soy sauce mixed with chili oil · Chinese hot mustard · rice vinegar dip

Character

Flavour

savoryumamislightly sweetbrinymildly spiced

Texture

tender, slightly chewy wrapper; juicy, firm, moist filling; popping fish roe or crisp carrot topping

Eaten

Served as part of a dim sum brunch with tea, shared family style; also popular at banquets, celebrations, and as street‑food snacks.

When

Year‑round

Variations & related

Regional variations

Beef Siu Mai · Taiwan
Replaces pork with ground beef, often mixed with tofu for a different flavor profile.
Vegetarian Siu Mai · Hong Kong
Uses tofu, mushrooms, and glass noodles as protein, topped with carrot for color.
Japanese Shumai · Japan
Primarily shrimp and pork, sometimes topped with green pea or orange fish roe; wrapper is slightly thinner.
Korean Ssomai · Korea
May incorporate kimchi and pork, served with a soy‑garlic dipping sauce.

Related dishes

ancestor Northern Chinese Shaomai
Closed wheat‑flour dumpling with pork filling, the precursor to the open‑topped Cantonese version.
descendant Japanese Shumai
Adapted with more shrimp and often topped with pea or roe; distinct wrapper style.
sibling Har Gow
Steamed shrimp dumpling with a translucent skin; both are dim sum staples served steamed.
pairs-with Soy sauce–chili oil dip
Classic condiment that adds salt, umami, and heat to the dumpling.

Substitutions

Pork → Chickenadmissible
Leaner protein, still yields a cohesive filling
Prawn → Crab meatadmissible
Swaps shellfish type; adds sweeter flavor
Wheat flour wrapper → Rice flour wrapperinadmissible
Alters texture; wrapper becomes gummy and does not hold the cup shape
Fish roe topping → Carrot sliceadmissible
Common visual swap; removes fish allergen while preserving contrast
Soy sauce → Tamari (gluten‑free)admissible
Provides similar umami without gluten

Common mistakes

Overfilling the dumpling causing the wrapper to tear during steaming
Undercooking the filling, leaving pork or prawns raw
Using too much flour in the wrapper dough, resulting in a tough skin
Skipping the garnish, which diminishes visual identity
Not allowing the dough to rest, leading to shrinking or tearing during shaping

Provenance

Siu mai traces its roots to northern Chinese shaomai, a closed meat‑filled dumpling that arrived in Guangdong in the early 20th century and was adapted to an open‑topped, prawn‑pork version for the Cantonese dim sum tradition. Its popularity spread worldwide through Chinese diaspora communities, and it remains a staple of Hong Kong and Southern Chinese teahouses.

Claimed by: China (Guangdong / Hong Kong), Northern China, Broad Chinese diaspora

References

1.Ken Hom, 'Chinese Cookery' (1983)
2.Grace Young, 'Breath of a Wok' (2002)
3.Huang Cheng‑Hsing, 'Dim Sum: The Art of Chinese Tea House Cooking' (2010)
4.Oxford Food Encyclopedia (2020)
5.HKCU Food Studies Archive (2022)

Confidence: high