Tororo (food)

Last updated

Tororo
Tororo soba by ume-y.jpg
Soba with tororo
Type Side dish, food staple
Place of origin Japan
Associated cuisine Japanese cuisine
Serving temperatureCold
Main ingredients Yamaimo or nagaimo , water

Tororo (Japanese : 薯蕷, とろろ) is a Japanese side dish made from grating raw yams such as yamaimo (Japanese mountain yam) or nagaimo (Chinese yam).

Contents

The flavorless dish uses ingredients such as wasabi (a pungent paste made from the wasabi plant), dashi (Japanese stocks), and chopped spring onions, to give it more flavor. [1] It has a white and sticky texture and is also served as an ingredient in various dishes, such as being paired with various types of noodles, such as soba (Japanese buckwheat noodles) and udon (wheat flour noodles).

Its ubiquity in various dishes makes it a staple of Japanese cuisine and culture, being featured in many literary and art works made by people such as poet Matsuo Basho, artist Hiroshige, and Edo period priest Anrakuan Sakuden.

Etymology

The term tororo (とろろ), comes from the Japanese sound symbolism of torotoro (トロトロ or とろとろ), which expresses that something is sticky, slimy, or syrupy. [2]

In Japanese grammar, onomatopoeias usually function as adverbs, though they can also function as verbs with the auxiliary verb suru (する, "do"); with torotorosuru (とろとろする or トロトロする), meaning the state of a solid object turning into a viscous liquid. [3]

Production

Nagaimo (literally "long tuber"), also known as Chinese yam, a yam used for making tororo Dioscorea polystachya (batatas).jpg
Nagaimo (literally "long tuber"), also known as Chinese yam, a yam used for making tororo

Tororo is usually made from raw yam of either of two species, namely yamaimo (Dioscorea japonica) and/or nagaimo (Dioscorea polystachya). [4]

Grated tororo using a modern grater Tororo (grated Dioscorea polystachya).jpg
Grated tororo using a modern grater

Before grating, the yam's roots and the peel are removed to avoid itchiness from the calcium oxalate crystals present on those parts of the plant. Even though they possess these crystals, they are not present on the pith, unlike other tubers. [5]

Traditional grating uses a suribachi , a traditional pottery bowl similar to a mortar, grinding the yam along the surface of it slowly until the amount of yam present on it is enough so that a surikogi , a traditional pestle, can mix it by lifting it to incorporate air for a more viscous texture. [6] Many modern processes of making tororo use a grater for a faster process. [7]

Tororo is usually plain, but other ingredients such as soy sauce, dashi , and miso (soybean paste), are added for other recipes such as mugitoro (tororo over rice) and suitoro (clear soup) to enhance the flavor and change the texture. [1]

Texture

The stickiness of tororo gets prevalent during grinding, which is said to be the mucilage found in the yam dissolving the cells by grinding and hydrating them. Another theory suggests that grinding the yam makes it stickier, which also happens when the grinded-up yam is cooked. [8] The chemical composition of the mucilage has not yet been found. [9] Theories from the Chemical Society of Japan suggest that the substance is made of mannans and proteins, which have the same characteristics when Ginkgo biloba is ground. [10] [11]

Nutrition

Mugitoro gohan (tororo over rice), a dish used in the study Mugitoro gohan 2.jpg
Mugitoro gohan (tororo over rice), a dish used in the study

The main ingredient of tororo (yams) contains a high amount of vitamins and minerals such as thiamine (vitamin B1), vitamin C, calcium, and potassium, [12] as well as micronutrients such as potassium, zinc, and iron. [13]

In a study by the Asia Pacific Journal of Clinical Nutrition, the consumption of tororo lowers blood sugar and insulin. Due to the raw nature of the food, it is more difficult to digest due to the presence of mucin, dietary fiber, and uncooked raw starch in tororo. [14]

Uses in food

Yamakake, hamachi (yellowtail) over tororo 2020-07-10 Hamachi-Yamakake Donburi hamachiyamakakeJing DSCF2002.jpg
Yamakake, hamachi (yellowtail) over tororo

Tororo is served cold and is consumed on its own though, the foodstuff can also be used as a side dish for other dishes or as an ingredient to other dishes. It is usually flavorless but other condiments such as wasabi, dashi , miso, and chopped spring onions are added for flavor or for other dishes. [15]

Tororo is often used as a topping on many dishes due to the fact that many foods such as nattō (fermented soybeans), udon, and fish can be topped with tororo for a more filling meal as it is inexpensive to add. When tororo is accompanied with diced fish (usually tuna), the dish is called yamakake. Yamakake can also be used when referring to soba topped off with tororo. [15]

Soba with tororo Tororo soba 2 by verigi in Takao, Tokyo.jpg
Soba with tororo

One of these foods is called mugitoro gohan (tororo over rice) (also known as tororo-meshi and tororo-kake-meshi when made), a dish made by pouring tororo over barley rice. [14]

Many soups, such as soba noodle soups, are paired with tororo. Tororo is mixed up with ingredients such as soy sauce, miso, and dashi before being put as an ingredient in a soup called tororo-jiru (tororo soup) to add more flavor. Mugitoro gohan is often paired up with soup, with the combination being called kotozute-jiru. [16]

Depictions in art and literature

Tororo-jiru depicted in an ukiyo-e of Mariko-juku, one of the stations in the 53 Stations of the Tokaido Mariko Gyosho Tokaido.jpg
Tororo-jiru depicted in an ukiyo-e of Mariko-juku , one of the stations in the 53 Stations of the Tōkaidō

Tororo is referenced in literary works such as the Seisuishō , a book made by Edo period priest Anrakuan Sakuden in 1623, coining the term kotozute-jiru (literally meaning word soup), from the double meaning of the word iiyaru, which can mean to say (using words) or to eat. [16]

In the Edo period, Mariko-juku , one of the stations in the 53 Stations of the Tōkaidō, tororo-jiru is known as a famous local food in the area. Poet Matsuo Bashō, wrote a poem about the local specialty entitled Ume-wakana Maruko no Yado no Tororo-Jiru in his anthology Sarumino . [17] It is written as a specialty of the area in the Tōkaidōchū Hizakurige , a comic picaresque novel composed by writer Jippensha Ikku. [18]

Featured on the ukiyo-e prints by artist Hiroshige, The Fifty-three Stations of the Tōkaidō , one print features Mariko-juku, the 20th station of the Tōkaidō, of a teahouse serving tororo-jiru. [19] [20]

Related Research Articles

<span class="mw-page-title-main">Japanese cuisine</span> Culinary traditions of Japan

Japanese cuisine encompasses the regional and traditional foods of Japan, which have developed through centuries of political, economic, and social changes. The traditional cuisine of Japan is based on rice with miso soup and other dishes; there is an emphasis on seasonal ingredients. Side dishes often consist of fish, pickled vegetables, and vegetables cooked in broth. Seafood is common, often grilled, but also served raw as sashimi or in sushi. Seafood and vegetables are also deep-fried in a light batter, as tempura. Apart from rice, a staple includes noodles, such as soba and udon. Japan also has many simmered dishes, such as fish products in broth called oden, or beef in sukiyaki and nikujaga.

<i>Nabemono</i> Variety of Japanese hot pot dishes

Nabemono, or simply nabe, is a variety of Japanese hot pot dishes, also known as one pot dishes and "things in a pot".

<span class="mw-page-title-main">Soba</span> Thin Japanese noodle made from buckwheat flour

Soba are thin Japanese noodles made from buckwheat. The noodles are served either chilled with a dipping sauce, or hot in a noodle soup. The variety Nagano soba includes wheat flour.

<span class="mw-page-title-main">Udon</span> Thick Japanese noodle made from wheat flour

Udon is a thick noodle made from wheat flour, used in Japanese cuisine. There is a variety of ways it is prepared and served. Its simplest form is in a soup as kake udon with a mild broth called kakejiru made from dashi, soy sauce, and mirin. It is usually topped with thinly chopped scallions. Other common toppings include prawn tempura, kakiage, abura-age, kamaboko, and shichimi spice added to taste.

<i>Tsukune</i> Japanese chicken meatball

Tsukune (つくね、捏、捏ね) is a Japanese chicken meatball most often cooked yakitori style and sometimes covered in a sweet soy or yakitori tare, which is often mistaken for teriyaki sauce.

<span class="mw-page-title-main">Japanese noodles</span>

Noodles are a staple of Japanese cuisine. They are often served chilled with dipping sauces, or in soups or hot dishes. Noodles were introduced to Japan from China during the Song Dynasty between the Heian until the early Kamakura period.

<span class="mw-page-title-main">Zōni</span> Japanese soup

Zōni, often with the honorific "o-" as o-zōni, is a Japanese soup containing mochi rice cakes. The dish is strongly associated with the Japanese New Year and its tradition of osechi ceremonial foods. The preparation of zōni varies both by household and region.

<span class="mw-page-title-main">Yam (vegetable)</span> Edible starchy tuber

Yam is the common name for some plant species in the genus Dioscorea that form edible tubers.

<span class="mw-page-title-main">Rice vermicelli</span> Thin dried noodles made of rice

Rice vermicelli is a thin form of noodle. It is sometimes referred to as "rice noodles" or "rice sticks", but should not be confused with cellophane noodles, a different Asian type of vermicelli made from mung bean starch or rice starch rather than rice grains themselves.

<span class="mw-page-title-main">Chinese yam</span> Species of yam from Asia

Dioscorea polystachya or Chinese yam, also called cinnamon-vine, is a species of flowering plant in the yam family. It is sometimes called Chinese potato or by its Korean name ma. It is also called huaishan in Mandarin and waisan in Cantonese.

<span class="mw-page-title-main">Soups in East Asian culture</span>

Soups in East Asian culture are eaten as one of the many main dishes in a meal or in some cases served straight with little adornment, particular attention is paid to the soups' stocks. In the case of some soups, the stock ingredients become part of the soup. They are usually based solely on broths and lacking in dairy products such as milk or cream. If thickened, the thickening usually consists of refined starches from corn or sweet potatoes.

<i>Takikomi gohan</i> Japanese rice dish

Takikomi gohan is a Japanese rice dish seasoned with dashi and soy sauce along with mushrooms, vegetables, meat, or fish. The ingredients of takikomi gohan are cooked with the rice. This dish is consumed by people in Japan around the fall season since many root vegetables and mushrooms are harvested during this season in Japan. Ingredients will vary based on the seasonal vegetables and fish. Since this dish has nutritional value, and uses a small amount of rice with vegetables and proteins, some Japanese people eat it for dieting purposes.

<span class="mw-page-title-main">Zosui</span> Japanese rice and vegetable soup

Zōsui, or ojiya (おじや), is a mild and thin Japanese rice soup akin to a rice-based vegetable soup. It is made from pre-cooked rice and dashi or water seasoned with either soy sauce or miso and cooked with other ingredients such as meat, seafood, mushrooms, and vegetables. It is generally served to those who are sick or otherwise feeling unwell, and is usually only served in the winter.

<span class="mw-page-title-main">Hōtō</span> Japanese noodle soup dish

Hōtō (ほうとう) is a noodle soup and popular regional dish originating from Yamanashi, Japan made by stewing flat udon noodles and vegetables in miso soup. Though hōtō is commonly recognized as a variant of udon, locals do not consider it to be an udon dish because the dough is prepared in the style of dumplings rather than noodles.

<span class="mw-page-title-main">Hot and sour soup</span> Chinese soup with sour and spicy ingredients

Hot and sour soup is a popular example of Sichuan cuisine. Similar versions are found in Henan province, near Beijing, and in Henan cuisine itself, where it may also be known as hulatang or "pepper hot soup" (胡辣汤). Also popular in Southeast Asia, India, Pakistan and the United States, it is a flexible soup which allows ingredients to be substituted or added depending on availability. For example, the American-Chinese version can be thicker as it commonly includes corn starch, whilst in Japan, sake is often added.

<i>Kaiseki</i> Traditional multi-course Japanese dinner

Kaiseki (懐石) or kaiseki-ryōri is a traditional multi-course Japanese dinner. The term also refers to the collection of skills and techniques that allow the preparation of such meals and is analogous to Western haute cuisine.

<span class="mw-page-title-main">Kenchin-jiru</span>

Kenchin jiru, also spelled kenchin-jiru, and sometimes referred to simply as kenchin, is a Japanese vegetable soup prepared using root vegetables and tofu. It is a popular dish in Japan and is prepared in various manners using myriad ingredients. It has been stated that the dish originated several centuries ago from Kenchō-ji, a temple, and it has also been suggested that the dish has its roots in shippoku cuisine.

References

  1. 1 2 Kawakami, Yukizo (2006). 完本日本料理事物起源: 日本料理事物起源 [Complete Japanese Culinary Origins: Japanese Culinary Origins] (in Japanese). Vol. 1. University of California. p. 421. ISBN   4000242407.
  2. "とろろ汁" [Tororo Soup] (in Japanese). Kotobank. Retrieved 20 January 2024.
  3. "とろとろ" [Torotoro] (in Japanese). Kotobank. Retrieved 29 December 2023.
  4. "'Yamaimo': Japan's slimy mountain yam". The Japan Times. 15 July 2016. Retrieved 20 January 2024.
  5. Watanabe, Maki (2019). Asian Salads: 72 Inspired Recipes from Vietnam, China, Korea, Thailand and India. Tuttle. p. 97. ISBN   9781462920839 . Retrieved 20 January 2024.
  6. Andoh, Elizabeth (28 February 2012). Washoku: Recipes from the Japanese Home Kitchen. Berkeley: Ten Speed Press. p. 64. ISBN   9780307813558 . Retrieved 20 January 2024.
  7. Lapointe, Rick (9 September 2001). "Grater expectations". The Japan Times . Retrieved 20 January 2024.
  8. "山芋と長芋、栄養や違いを知っておいしく食す" [Know the Difference Between Yamaimo and Nagaimo, Their Nutritional Benefits, and Eating Them] (in Japanese). Kagome. 12 January 2023. Retrieved 29 December 2023.
  9. Tsukui, Manabu (July 2007). "ヤマイモ粘質物の性状と構造の解析" [Analysis of Properties and Chemical Structure of Mucilage from Yam]. Journal of the Japan Food Preservation Science Society (in Japanese). Japan Food Preservation Science Society. p. 229-236. Retrieved 29 December 2023.
  10. Sato, Toshio; Mizuguchi, Jun; Suzuki, Shuichi; Tokura, Masatoshi (1967). "イチョウイモ粘質物の精製および性質" [Purification and Properties of Ginkgo Biloba Mucilage]. Japan Chemical Journal (in Japanese). Chemical Society of Japan. p. 216-220. Retrieved 29 December 2023.
  11. Sato, Toshio (1967). "イチョウイモ粘質物の組成と構造 (とくにマンナンの性状)" [Composition and structure of ginkgo mucilage (especially the properties of mannan)]. Japan Chemical Journal (in Japanese). Chemical Society of Japan. p. 982-985. Retrieved 29 December 2023.
  12. "日本食品標準成分表2015年版(七訂)" [Standard Tables of Food Composition in Japan 2015 (7th revision)] (in Japanese). Ministry of Education, Culture, Sports, Science and Technology. 2015. Retrieved 29 December 2023.
  13. Nagai, Takeshi; Nagashima, Toshio; Suzuki, Nobutaka (1 July 2007). "Purification and Partial Characterization of Major Viscous Protein from Yam (Dioscorea opposita Thunb.) Tuber Mucilage tororo". International Journal of Food Properties. Taylor & Francis . Retrieved 29 December 2023.
  14. 1 2 Matsuoka, Tsubasa; Yamaji, Ayako; Kurosawa, Chihiro; Shinohara, Manabu; Takayama, Ichiro; Nakagomi, Hiromi; Izumi, Keiko; Ichikawa, Yoko; Hariya, Natsuyo; Mochizuki, Kazuki (1 January 2023). "Co-ingestion of traditional Japanese barley mixed rice (Mugi gohan) with yam paste in healthy Japanese adults decreases postprandial glucose and insulin secretion in a randomized crossover trial". Asia Pacific Journal of Clinical Nutrition. Asia Pacific Journal of Clinical Nutrition. Retrieved 29 December 2023.
  15. 1 2 Andoh, Elizabeth (28 February 2012). Kansha: Celebrating Japan's Vegan and Vegetarian Traditions. Ten Speed Press. p. 69. ISBN   9781607743965 . Retrieved 20 January 2024.
  16. 1 2 "言伝汁" [Kotozute-jiru (Word Soup)] (in Japanese). Kotobank. Retrieved 29 December 2023.
  17. Matsuo, Bashō (1981) [Composed 1691]. The Monkey's Straw Raincoat and Other Poetry of the Basho School猿蓑. Translated by Miner, Earl Roy; Odagiri, Hiroko. Princeton University Press. p. 293. ISBN   9780691064604 . Retrieved 29 December 2023.
  18. Shirane, Haruo (2008) [Japanese version published 2002]. Early Modern Japanese Literature: An Anthology, 1600-1900, Abridged. Translated by Araki, James. Columbia University Press. p. 371. ISBN   9780231144148 . Retrieved 29 December 2023.
  19. "丸子(鞠子)宿" [Mariko-juku Inn] (in Japanese). Uchiyama.info. Archived from the original on 27 October 2007. Retrieved 29 December 2023.
  20. Lee, Hyunyoung; Woo, Yeonhee. "Meisho in Terms of Mobility and Ethical Literary Criticism: Meisho along Tokaido Gojusan-tsugi" (PDF). Interdisciplinary Studies Of Literature. Retrieved 20 January 2024.