is a popular Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

ese sponge cake

Sponge cake

Sponge cake is a cake based on flour , sugar, and eggs, sometimes leavened with baking powder which has a firm, yet well aerated structure, similar to a sea sponge. A sponge cake may be produced by either the batter method, or the foam method. Typicially the batter method in the U.S. is known as a...

 made of sugar

Sugar

Sugar is a class of edible crystalline carbohydrates, mainly sucrose, lactose, and fructose, characterized by a sweet flavor.Sucrose in its refined form primarily comes from sugar cane and sugar beet...

, flour

Flour

Flour is a powder which is made by grinding cereal grains, other seeds or roots . It is the main ingredient of bread, which is a staple food for many cultures, making the availability of adequate supplies of flour a major economic and political issue at various times throughout history...

, eggs

Egg (food)

Eggs are laid by females of many different species, including birds, reptiles, amphibians, and fish, and have probably been eaten by mankind for millennia. Bird and reptile eggs consist of a protective eggshell, albumen , and vitellus , contained within various thin membranes...

, and starch syrup

Mizuame

is a sweetener from Japan which is translated literally to 'water candy'. A clear, thick, sticky liquid, it is made by converting starch to sugars. Mizuame is added to wagashi to give them a sheen, eaten in ways similar to honey and can be a main ingredient in sweets...

, very common at festival

Festival

A festival or gala is an event, usually and ordinarily staged by a local community, which centers on and celebrates some unique aspect of that community and the Festival....

s and as a street food

Street food

Street food is ready-to-eat food or drink sold in a street or other public place, such as a market or fair, by a hawker or vendor, often from a portable stall. While some street foods are regional, many are not, having spread beyond their region of origin. Most street food are both finger and fast...

.

Now a specialty of Nagasaki, the cake was brought by way of Portuguese

Portugal

Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...

 merchants in the 16th century. The name is derived from Portuguese

Portuguese language

Portuguese is a Romance language that arose in the medieval Kingdom of Galicia, nowadays Galicia and Northern Portugal. The southern part of the Kingdom of Galicia became independent as the County of Portugal in 1095...

 Pão de Castela, meaning "bread from Castile

Castile (historical region)

A former kingdom, Castile gradually merged with its neighbours to become the Crown of Castile and later the Kingdom of Spain when united with the Crown of Aragon and the Kingdom of Navarre...

". Castella cake is usually sold in long boxes, with the cake inside being approximately 27cm long. It is somewhat similar to Madeira cake

Madeira cake

Madeira cake is a sponge cake in traditional English cookery.The Madeira Cake has a firm yet light texture, eaten with tea or rarely for breakfast and is traditionally flavoured with lemon. Dating back to an original recipe in the 18th century or 19th century, it is not unlike a simple pound cake...

, also associated with Portugal, but its closest relative is pão-de-ló, also a Portuguese cake.

Note that there are similar types of sponge cakes named after the same fashion, in French

French language

French is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...

: Pain d'Espagne, in Italian

Italian language

Italian is a Romance language spoken mainly in Europe: Italy, Switzerland, San Marino, Vatican City, by minorities in Malta, Monaco, Croatia, Slovenia, France, Libya, Eritrea, and Somalia, and by immigrant communities in the Americas and Australia...

: Pan di Spagna, in Portuguese: Pão de Espanha, in Bulgarian

Bulgarian language

Bulgarian is an Indo-European language, a member of the Slavic linguistic group.Bulgarian, along with the closely related Macedonian language, demonstrates several linguistic characteristics that set it apart from all other Slavic languages such as the elimination of case declension, the...

: пандишпан, in Greek

Greek language

Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

: Pantespani, in Turkish

Turkish language

Turkish is a language spoken as a native language by over 83 million people worldwide, making it the most commonly spoken of the Turkic languages. Its speakers are located predominantly in Turkey and Northern Cyprus with smaller groups in Iraq, Greece, Bulgaria, the Republic of Macedonia, Kosovo,...

: Pandispanya (Castile is a former kingdom

Kingdom of Castile

Kingdom of Castile was one of the medieval kingdoms of the Iberian Peninsula. It emerged as a political autonomous entity in the 9th century. It was called County of Castile and was held in vassalage from the Kingdom of León. Its name comes from the host of castles constructed in the region...

 of Spain

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 comprising its central provinces, thus Pain d'Espagne and other variants are quasi-synonymous to "bread from Castile").

History

In the 16th century, the Portuguese reached Japan, and soon started trade and missionary work. Nagasaki was then the only Japanese port open for foreign commerce. The Portuguese introduced many then-unusual things, such as guns

Güns

Güns or Guens may refer to:* Kőszeg, Hungary * Kőszeg Mountains, Hungary * Akiva Güns , birth name of Akiva Eger, a Hungarian-Polish rabbi- See also :* Guns * Gün, a surname...

, tobacco

Tobacco

Tobacco is an agricultural product processed from the leaves of plants in the genus Nicotiana. It can be consumed, used as a pesticide and, in the form of nicotine tartrate, used in some medicines...

, and pumpkin

Pumpkin

A pumpkin is a gourd-like squash of the genus Cucurbita and the family Cucurbitaceae . It commonly refers to cultivars of any one of the species Cucurbita pepo, Cucurbita mixta, Cucurbita maxima, and Cucurbita moschata, and is native to North America...

s—and castella. It was able to be preserved for a long period of time, and so was useful for the sailors who were out on the sea for months. In the Edo Period

Edo period

The , or , is a division of Japanese history which was ruled by the shoguns of the Tokugawa family, running from 1603 to 1868. The political entity of this period was the Tokugawa shogunate....

, in part due to the cost of sugar, it was an expensive dessert. When the Emperor of Japan

Emperor of Japan

The Emperor of Japan is, according to the 1947 Constitution of Japan, "the symbol of the state and of the unity of the people." He is a ceremonial figurehead under a form of constitutional monarchy and is head of the Japanese Imperial Family with functions as head of state. He is also the highest...

's envoy was invited, the Tokugawa Shogunate

Tokugawa shogunate

The Tokugawa shogunate, also known as the and the , was a feudal regime of Japan established by Tokugawa Ieyasu and ruled by the shoguns of the Tokugawa family. This period is known as the Edo period and gets its name from the capital city, Edo, which is now called Tokyo, after the name was...

 presented the Castella. Over the years, the taste changed to suit Japanese palates.

Varieties

Castella is made of natural ingredients, so its simple taste is a favorite of many Japanese people

Japanese people

The are an ethnic group originating in the Japanese archipelago and are the predominant ethnic group of Japan. Worldwide, approximately 130 million people are of Japanese descent; of these, approximately 127 million are residents of Japan. People of Japanese ancestry who live in other countries...

. There are now many varieties made with ingredients such as powdered green tea

Matcha

refers to finely-milled green tea, most popular in Japan. The cultural activity called the Japanese tea ceremony centers on the preparation, serving, and drinking of matcha. In modern times, matcha has also come to be used to flavour and dye foods such as mochi and soba noodles, green tea ice cream...

, brown sugar

Brown sugar

Brown sugar is a sucrose sugar product with a distinctive brown color due to the presence of molasses. It is either an unrefined or partially refined soft sugar consisting of sugar crystals with some residual molasses content, or it is produced by the addition of molasses to refined white...

, and honey

Honey

Honey is a sweet food made by bees using nectar from flowers. The variety produced by honey bees is the one most commonly referred to and is the type of honey collected by beekeepers and consumed by humans...

. They may be molded in various shapes; a popular Japanese festival food is baby castella, a bite-sized version.