
“The sun egg sandwich” is 20 centimeters (7.87 inches) in diameter and is on a mission to become a new famous local product of Saitama Prefecture.
We’re starting to be envious of our Japanese-language correspondent Mr. Sato’s metabolism. With the amount of giant food challenges and other gastronomic assignments he takes on, you’d at least think he’d pack on a few pounds every now and then–but the man somehow stays slim, even when wearing loose clothing like the Pajama Suit.
New case in point: Mr. Sato recently spotted something called “the sun egg sandwich” (太陽のたまごサンド) while strolling by a special pop-up stand at the Tobu Department Store in Ikebukuro Station.
▼ An egg sandwich measuring 20 centimeters in diameter?!
The stand was a limited-time offering of Café Sangria, permanently located in Saitama City, Saitama Prefecture. In 2020, the café appealed to Japanese crowdfunding site Makuake out of a desire to develop a new local specialty foodstuff that could represent Saitama Prefecture. Despite aiming for an initial goal of 200,000 yen (US$1,817) to aid in their efforts, the campaign ultimately succeeded in raising a whopping 1.14 million yen. Subsequent culinary experiments gave birth to the sun egg sandwich, which makes use of local Saitama ingredients such as Sai eggs.
Could that kind of massive bite even still be considered an egg sandwich, or something else completely? It seemed to defy our previous understanding of an egg sandwich up until now. In the name of investigative journalism, however, sign Mr. Sato up, please!
A whole-sized sandwich came to 2,500 yen, though you could also purchase half-sized or quarter-sized ones for cheaper.
He also took special notice of the “tamatozzo” (pictured bottom left in the above photo), or egg maritozzo (based on a sweet Italian pastry). Café Sangria sure had a lot of creative ideas.
Once home, the first thing he noticed when he opened his newfangled egg sandwich prize was a distinct lack of egg. A typical egg sandwich might have slices of egg or perhaps a fried sunny-side up egg poking out somewhere, but this one looked more like a bread pizza than anything from the outside.
Suddenly, its ginormous size finally registered in his mind.
▼ “Look, Ma! It’s bigger than my head!”
There definitely never was, is, or would be another egg sandwich to compete with this one. Mr. Sato thought it was well on its way towards becoming a new famous local specialty food product of Saitama.
However, it still didn’t come across as an egg sandwich in the usual sense. He decided to cut it in half to take a peek inside and was greeted by the following cross section.
It turned out that there was a massively dense hidden omelet inside of the bread. Apparently the creators had tested omelet after omelet until they developed the perfect version to bring out the rest of the delicacy’s inherent flavors.
▼ This must be where it got the “sun” in its name.
Without further ado, Mr. Sato prepared to take a bite. Itadakimasu!
It was a sandwich, after all, so he had no qualms about simply biting into it as-is.
It was unlike anything he had ever tasted before. The pastry part was similar to the light flakiness of a Danish, while the omelet part was almost like a soufflé cheesecake (popular in Japan). It went down smoothly but wasn’t overly rich in flavor.
After a little experimenting he discovered that the sandwich tasted great at room temperature, chilled, or microwaved for 3-4 minutes followed by 1-2 minutes of toasting in the oven.
In fact, this last method turned out to be his favorite. Once toasted, the bread’s buttery nature came to the forefront and gave off a delicious aroma. He enjoyed the crispier outer texture as well. The inner omelet remained fluffy but like a freshly baked sweet.
▼ A drizzle of Saitama’s Matsuda mayonnaise to top it off
Mr. Sato was pleased to learn that the sun egg sandwich can now be ordered online, but with a slight jump in price to 3,300 yen for a whole-sized one. He recommends that anyone who’s interested should swing by the Ikebukuro pop-up location during its limited run if possible. While you’re in the area, you may also want to check out the world’s largest capsule toy specialty store.
Special pop-up stand information
Café Sangria (Ikebukuro: Tobu Department Store location) / カフェサングリア (池袋・東武百貨店催事出店)
Address: Tokyo-to, Toshima-ku, Nishi-Ikebukuro 1-1-25 Basement Floor 1, Event Space 9
東京都豊島区西池袋1丁目1-25 B1 9番地イベントスペース
Duration: July 15-27
Open: 10 a.m.-8 p.m.
Reference: Café Sangria, Makuake, Rakuten
All photos © SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]












Japan’s Egg Curry Pan Sandwich is a bread-on-bread snack that deserves to go viral
Pringles Japanese egg sandwich-flavor potato chips on sale now, said to taste AND smell the part
We find the most ridiculous but awesome sandwiches at a little-known countryside supermarket
Mr. Sato shows us what happens when you try to cook rice with only eggs 【SoraKitchen】
Yakuzen ramen restaurant in Tokyo is very different to a yakuza ramen restaurant
Pretty pink coffins to sleep in now on sale in Japan, made by local Tokyo craftsmen【Photos】
What’s up with the secret basement at this Japanese train station?
Fives places around Japan to appreciate the plum blossoms this season
Beautiful blue apple jam is taking the Japanese internet’s breath away!
Japanese fashion company’s modernized haori half coats will keep you warm and samurai chic
Four dirt-cheap but tasty places to grab lunch in Tokyo’s Shibuya shopping mecca
New Mochi Cream Doughnuts from Mister Donut pay homage to Japanese confectionery
A look back on 40 years of Japanese schools banning stuff
Satisfy your sweet tooth with cheesecake and more all-you-can-eat sweets at Cheese Garden
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Is Sapporio’s Snow Festival awesome enough to be worth visiting even if you hate the snow? [Pics]
Japan has trams that say “sorry” while they ride around town…but why?
Sakura Totoro is here to get spring started early with adorable pouches and plushies
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Poop is in full bloom at the Unko Museums for cherry blossom season
Now is the time to visit one of Tokyo’s best off-the-beaten-path plum blossom gardens
Playing Switch 2 games with just one hand is possible thanks to Japanese peripheral maker
Japan’s newest Shinkansen has no seats…or passengers [Video]
Foreigners accounting for over 80 percent of off-course skiers needing rescue in Japan’s Hokkaido
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Archfiend Hello Kitty appears as Sanrio launches new team-up with Yu-Gi-Oh【Pics】
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says