Tempura (天ぷら or 天麩羅 tenpura) is a Japanese dish of seafood or vegetables that have been battered and deep fried.
A light batter is made of cold water (sometimes sparkling water is used to keep the batter light) and soft wheat flour (cake, pastry or all-purpose flour). Eggs, baking soda or baking powder, starch, oil, and/or spices may also be added. Tempura batter is traditionally mixed in small batches using chopsticks for only a few seconds, leaving lumps in the mixture that, along with the cold batter temperature, result in the unique fluffy and crisp tempura structure when cooked. The batter is often kept cold by adding ice, or by placing the bowl inside a larger bowl with ice in it. Over-mixing the batter will result in activation of wheat gluten, which causes the flour mixture to become chewy and dough-like when fried. Refer to the Tempura Batter Recipe below.
Specially formulated tempura flour is available in worldwide supermarkets. This is generally light (low-gluten) flour, and occasionally contains a leavener such as baking powder.
Tempura generally does not use breadcrumbs (panko) in the coating. Generally, fried foods which are coated with breadcrumbs are considered to be furai, Japanese-invented Western-style deep fried foods, such as Tonkatsu or Ebi Furai.
Thin slices or strips of vegetables or seafood are dipped in the batter, then briefly deep-fried in hot oil. Vegetable oil or canola oil are most common; however, tempura was traditionally cooked using sesame oil. Many specialty shops still use sesame oil or tea seed oil, and it is thought certain compounds in these oils help to produce light, crispier batter.
When cooking shellfish, squid, or hard-skinned watery vegetables, such as bell pepper or eggplant, the skin is usually scored with a knife to prevent the ingredients from bursting during cooking, which can cause serious burns from splashing oil.
Oil temperature is generally kept between 160 – 180°C, depending on the ingredient. To preserve the natural flavour and texture of the ingredients, care is taken not to overcook tempura. Cooking times range between a few seconds for delicate leaf vegetables, to several minutes for thick items or large Kakiage Fritters.
The bits of batter (known as Tenkasu) are scooped out between batches of tempura, so they do not burn and leave a bad flavour in the oil. A small mesh scoop (Ami jakushi) is used for this purpose. Tenkasu are often reserved as ingredients in other dishes or as a topping.
Ingredients in traditional tempura include:
- Ayu (sweetfish)
- Anago (conger eel)
- White Fish
- Green Beans
- Butternut Squash
- Sweet Potato
- Renkon (lotus root)
- Shiitake Mushroom
- Bamboo Shoots
Serving and Presentation
Cooked bits of tempura are either eaten with dipping sauce, salted without sauce, or used to assemble other dishes. Tempura is commonly served with grated daikon and eaten hot immediately after frying. In Japan, it is often found in bowls of soba or udon soup often in the form of a shrimp, shiso leaf, or fritter. The most common sauce is Tentsuyu Sauce (roughly three parts dashi, one part mirin, and one part shoyu). Alternatively, tempura may be sprinkled with sea salt before eating. Mixtures of powdered green tea and salt or yuzu and salt are also used.
Kakiage is a type of tempura made with mixed vegetable strips, such as onion, carrot, and burdock, and sometimes including shrimp or squid, which are deep fried as small round fritters.
Tempura is also used in combination with other foods. When served over soba (buckwheat noodles), it is called tempura soba or tensoba. Tempura is also served as a Donburi dish where tempura shrimp and vegetables are served over steamed rice in a bowl (tendon) and on top of udon soup (tempura udon).
In Japan, restaurants specialising in tempura are called tenpura-ya and range from inexpensive fast food chains to very expensive five-star restaurants. Many restaurants offer tempura as part of a set meal or a Bento (lunch box), and it is also a popular ingredient in take-out or convenience store bento boxes. The ingredients and styles of cooking and serving tempura vary greatly through the country, with importance being placed on using fresh, seasonal ingredients.
In Taiwan, Tempura as described above is known as tiānfùluō (天婦羅) and can commonly be found on the menu in Japanese restaurants all over the country. A similar sounding dish, Tián-bù-là (甜不辣) (lit. sweet, not spicy) is usually sold at night market; it bears no resemblance whatsoever with Tempura, but can be considered a counterpart to Japanese oden.
Outside of Japan
Outside Japan (as well as recently in Japan), there are many nontraditional and fusion uses of tempura. Chefs over the world include tempura dishes on their menus, and a wide variety of different batters and ingredients are used, including the nontraditional broccoli, zucchini, asparagus and Chuchu. More unusual ingredients may include nori slices, dry fruit such as banana, and ice cream (tenpura-based fried ice cream). American restaurants are known to serve tempura in the form of various meats, particularly chicken, and cheeses, usually mozzarella. A variation is to use panko (breadcrumbs), which results in a crisper consistency than tempura batter. Using panko in Japan would no longer qualify the dish as tempura. It would become something else called fry or pronounced in Japanese as furai. Tempura (particularly shrimp) is often used as a filling in Makizushi. A more recent variation of tempura sushi has entire pieces of sushi being dipped in batter and tempura-fried.
In Bangladesh the blossoms of pumpkins or marrows are often deep fried with a gram of rice flour spice mix creating a Bengali style tempura known as Kumro Phool Bhaja.
- 1 egg
- 1 cup ice water/cold water
- 1 cup all purpose flour, sifted
- Beat an egg in a bowl.
- Add ice water in the bowl. Be sure to use very cold water.
- Add sifted flour in the bowl and mix lightly. Be careful not to overmix the batter.