Hasma
From Wikipedia, the free encyclopedia
Hasma (雪蛤, 雪蛤膏, or 哈士蟆)is a Chinese dessert ingredient made from the dried fallopian tubes of the hermaphrodite frog Rana temporaria chensinensis, which is also commonly known as the snow frog or forest frog. Hasma is often mistakenly described as toad or frog fat, since it is sometimes referred to as "Toad oil" (Chinese: 蛤蟆油; pinyin: há mǎ yóu) in Chinese.
Hasma is produced primarily in Heilongjiang, Jilin, and Liaoning provinces in China. Previously available only to emperors, soups made with hasma is available in North American cities with large Chinese populations and in China and Hong Kong.
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[edit] Physical characteristics
Hasma is sold dried as irregular flat pieces and flakes ranging from 1-2 cm in length and 1-5 mm in thickness. Individual pieces are yellowish-white in colour with a matte lustre, whose surface may be covered with off-white pellicles. When rehydrated, dried hasma can expand up to 10-15 times in size.
The dried hasma is rehydrated and double-boiled with rock sugar to create a glutinous texture and opaque color. Dried or rehydrated hasma has a slight fishy smell. In its unflavoured form it is sweet and slightly savory in taste with a texture that is glutinous, chewy, and light, very similar to that of tapioca in a dessert.
[edit] Preparation
Hasma serves the role of providing texture to sweet soups, known as "Tong sui" (Chinese: 糖水; pinyin: Táng Shuǐ; literally "sugar water"), as well as increasing the luxery quotient of the soup. These soups are usually flavoured with rock sugar. For the uninitiated, this relatively accessible eating experience belies the exotic sounding nature of the dessert. Harsmar is widely featured in dessert dishes in high class restaurants in Hong Kong.
Hasma is most commonly paired in sweet soups with:
- Jujubes (Chinese: 紅棗; pinyin: hóng zaǒ; literally "red date")
- Dried longan fruits (Chinese: 龍眼; pinyin: lóng yěn; literally "dragon eye")
- Lotus seeds (Chinese: 蓮子; pinyin: lían zĭ)
It is also a key ingredient in making "Three snow soup" (Chinese: 三雪湯; pinyin: sān xuě tāng), which consists of:
- Chinese pear(Chinese: 雪梨; pinyin: xuě lí; literally "snow pear")
- Snow fungus(Chinese: 雪耳; pinyin: xuě ěr; literally "snow ear")
- Hasma
Hasma can also be included in more exotic versions of shark's fin soup.
[edit] Health benefits
Hasma is also taken for medicinal purposes in Traditional Chinese medicine. Reported benefits of eating hasma include replenishing vital essence in the lungs, kidneys, and improving skin complexion. Hasma is also prescribed to treat respiratory symptoms such as coughing, hemoptysis and night sweats due to tuberculosis.
