Taiyaki vs. Imagawayaki: Meaning, Shape, Filling, and History

Kodak

Today we are comparing two Japanese sweets that are close relatives: たい焼き(taiyaki) and 今川焼き(imagawayaki).

One looks like a fish and the other is round—but is shape really the only difference?

Taiyaki vs. Imagawayaki: The Short Answer

Taiyaki and imagawayaki are both molded cakes made from flour-based batter with a filling, traditionally sweet red-bean paste.

The clearest difference is the mold:

Taiyaki(たい焼き)
Fish-shaped, specifically modeled after a tai or sea bream.

Imagawayaki(今川焼き)
Round and thick, usually shaped like a short cylinder or puck.

Bottom line: Taiyaki is commonly understood as a fish-shaped relative—or type—of imagawayaki. Batter, thickness, crispness, and filling can still differ by shop.

So if I closed my eyes, could they taste exactly the same?

Kodak

They certainly can taste very similar, especially when both use red-bean paste.

But the mold changes the eating experience. Taiyaki has a thin tail, fins, and edges that can become crisp, while imagawayaki tends to have a more even, thick cake layer around the filling.

What Does Taiyaki Mean?

The word taiyaki is made from:

鯛(たい/tai) = sea bream
焼き(やき/yaki) = something cooked with direct heat

鯛焼き/たい焼き = “baked sea-bream shape” or “sea-bream-shaped cake”

Despite the name and shape, ordinary taiyaki contains no fish. The word tai identifies the design of the mold.

Why Is Taiyaki Shaped Like a Fish?

The fish is a tai, or red sea bream. In Japanese culture, tai is associated with celebration partly because tai appears inside the word medetai(めでたい), meaning auspicious, happy, or worthy of celebration.

A widely cited origin account connects modern taiyaki with the founder of Tokyo’s Naniwaya Sohonten in the early twentieth century. According to food-history sources summarized by Japan’s National Diet Library reference service, round imagawayaki did not sell well, and even a turtle-shaped version failed. A sea-bream shape succeeded because tai was both auspicious and a luxury fish that ordinary people could not often afford.

In other words, taiyaki offered a playful, inexpensive “sea bream” made of cake and sweet bean paste.

鯛(たい/tai) — sea bream
めでたい(medetai) — auspicious; joyful; celebratory

The words are not identical in origin, but the shared sound makes tai a popular symbol of good fortune.

What Does Imagawayaki Mean?

Imagawayaki(今川焼き) is named after the Imagawa Bridge area in Edo, now Tokyo, where the sweet is said to have been sold.

今川(いまがわ/Imagawa) = the place name connected with Imagawa Bridge
焼き(やき/yaki) = a cooked or baked item

今川焼き = “the baked sweet from the Imagawa area”

A historical reference to imagawayaki appears in a publication from 1777. Library research sources describe it as a popular Edo-period sweet made by cooking batter and red-bean paste in a metal mold.

Therefore, Imagawa does not describe the flavor or filling. It preserves a geographic name.

Ingredients: Are Taiyaki and Imagawayaki Made from the Same Batter?

Both commonly use a batter based on:

  • Wheat flour
  • Egg
  • Sugar
  • Water or milk
  • Leavening, depending on the recipe

However, there is no single national formula. A taiyaki shop may use a thin, crisp batter, while another makes a soft, pancake-like shell. Imagawayaki can also range from dense and cakey to light and crisp.

The safest conclusion is:

The basic concept and ingredients overlap heavily, but the shop’s recipe can matter more than the category name.

Common Fillings

Anko(あんこ)— Sweet red-bean paste

The traditional filling for both sweets is anko, usually made from azuki beans and sugar.

Custard cream(カスタードクリーム)

Custard is one of the most common modern alternatives and is widely available at festival stalls and specialty shops.

Chocolate

Chocolate fillings appeal to customers who are less familiar with red-bean paste.

Sweet potato, matcha, chestnut, or cheese

Seasonal and regional versions may use Japanese sweet potato, green-tea cream, chestnut paste, cheese, or other fillings.

Savory fillings

Some shops sell versions filled with curry, sausage, cheese, or okonomiyaki-style ingredients. These are creative variations rather than the traditional standard.

Shape and Texture Differences

Taiyaki
• Fish mold with head, body, fins, and tail
• More thin edges that can become crisp
• Filling distribution may vary from head to tail
• Often eaten by debating: “Do you start at the head or the tail?”

Imagawayaki
• Round, thick mold
• More even cake-to-filling ratio
• Usually no thin tail or fin edges
• Easy to stack and cook in rows

There is actually a debate about which end of taiyaki to eat first?

Kodak

Yes! It is a lighthearted personality question in Japan.

Starting from the head, starting from the tail, splitting it first—people attach playful meanings to each choice. There is no correct eating order, so choose the end with the texture you like.

Regional Names for Imagawayaki

One reason this topic is confusing is that the round sweet has many names across Japan. Depending on the region or shop, you may see:

  • 大判焼き(obanyaki) — “large-coin-shaped bake”
  • 回転焼き(kaitenyaki) — “rotating bake”
  • 二重焼き(nijuyaki) — “double-layer bake”
  • 太鼓焼き(taikoyaki) — “drum-shaped bake”
  • 御座候(gozasoro) — a brand name that is also used conversationally in some areas

These terms often refer to nearly the same basic sweet. Regional identity, shop branding, and mold style determine the preferred name.

If the sweet is fish-shaped, call it taiyaki.
If it is round, imagawayaki is widely understood—but a local person may use a different regional name.

Pronunciation

Taiyaki
Japanese: たい焼き
Romanization: taiyaki
Beginner sound guide: tah-ee-yah-kee

Imagawayaki
Japanese: いまがわ焼き
Romanization: imagawayaki
Beginner sound guide: ee-mah-gah-wah-yah-kee

In taiyaki, do not compress tai into the English word “tie” too sharply. Japanese treats ta-i as two timing units.

Kanji, Hiragana, and Katakana

Taiyaki
Kanji + hiragana: たい焼き or 鯛焼き
Hiragana: たいやき
Katakana: タイヤキ

Imagawayaki
Kanji + hiragana: 今川焼き
Hiragana: いまがわやき
Katakana: イマガワヤキ

The everyday spelling たい焼き is common because the fish name is easy to read in hiragana. 今川焼き normally keeps the place name in kanji.

Example Sentences

たい焼きの中にはあんこが入っています。
Taiyaki no naka ni wa anko ga haitte imasu.
“There is sweet red-bean paste inside the taiyaki.”

たい焼きは魚ではありません。
Taiyaki wa sakana dewa arimasen.
“Taiyaki is not fish.”

頭としっぽ、どちらから食べますか。
Atama to shippo, dochira kara tabemasu ka?
“Do you eat it from the head or the tail?”

今川焼きを二つください。
Imagawayaki o futatsu kudasai.
“Two imagawayaki, please.”

この地域では今川焼きを回転焼きと呼びます。
Kono chiiki dewa imagawayaki o kaitenyaki to yobimasu.
“In this region, people call imagawayaki ‘kaitenyaki.’”

Taiyaki in Anime and Japanese Pop Culture

Taiyaki is visually distinctive, so anime and manga use it as a quick symbol of casual Japanese sweets. Characters may eat it while walking through a shopping street, buy it in winter, or argue over head-first versus tail-first eating.

The fish shape also makes taiyaki easy to turn into character merchandise, miniature keychains, toys, and novelty versions. In fantasy or comedy scenes, a character may mistakenly react as though it contains real fish—mirroring a common question from learners.

Taiyaki vs. Imagawayaki FAQ

Is taiyaki just fish-shaped imagawayaki?

That is a useful basic explanation. Food-history references describe taiyaki as a sea-bream-shaped form related to imagawayaki. Individual recipes and textures can still differ.

Does taiyaki contain fish?

Standard sweet taiyaki does not. Tai refers to the sea-bream shape.

Which one was invented first?

Imagawayaki is older, with an eighteenth-century written reference. The widely cited modern taiyaki origin story dates to the early twentieth century.

Are obanyaki and imagawayaki the same?

They usually describe the same general type of round filled cake, though recipes and local expectations may vary.

Which filling is traditional?

Sweet red-bean paste is the classic filling for both.

Taiyaki or Imagawayaki? Check the Mold

The article shows that taste can be nearly identical, so the name really comes down to the mold shape, not the filling. Use this to name what you are looking at.

1. What shape is the mold — a fish with a tail and fins, or a flat round disc?
Fish-shaped, with tail and fins → 鯛焼き (taiyaki)
“Baked sea-bream shape” — crisp tail and edges.
Round, flat disc → 今川焼き (imagawayaki)
A more even, thick cake layer all around.
2. If it is round, does the shop or region use a different local name for the same basic sweet?
Called “large-coin-shaped” → 大判焼き (obanyaki)
Called “rotating bake” → 回転焼き (kaitenyaki)
Called “double-layer” or “drum-shaped” → 二重焼き / 太鼓焼き
3. Both taiyaki and imagawayaki can use the same red-bean filling — so is the shape or the filling telling you which word to use?
Shape → use that to name it
Fish mold = taiyaki, round mold = imagawayaki, regardless of filling.
Filling alone → not reliable
Same filling appears in both; it will not tell you which one you have.

※ Based on the shape-and-naming sections above, not a rule for every regional shop.

Taiyaki vs. Imagawayaki: Summary

● Both are molded flour-based cakes, traditionally filled with sweet red-bean paste.
Taiyaki is shaped like a sea bream; imagawayaki is round.
● The tai shape suggests celebration through the word association with medetai.
● Imagawayaki is named after the Imagawa Bridge area of Edo.
● Imagawayaki is older; taiyaki developed later as an auspicious fish-shaped version.
● The round sweet has many regional names, including obanyaki and kaitenyaki.
Kodak

The easiest way to remember the pair is this:

Imagawayaki carries a place name. Taiyaki carries a shape and a symbol of good luck.

The ingredients may be close, but the names tell two completely different cultural stories.

Explore more food names in Japanese Street Food Words: A Beginner’s Guide.