
Although it’s often overshadowed by ramen and soba, udon is the final member of the triumvirate of Japanese noodles. With a spongy, absorbent texture, it allows diners to really enjoy the flavor of the broth or dipping sauce it’s served with. This airier structure also means you might need a larger serving to get as full as you would from a meal of ramen or soba, however.
With this in mind, and very little in his stomach, our reporter Mr. Sato headed to a branch of popular udon chain Marugame Seimen, where he fearlessly ordered the largest bowl of udon on the menu, the Family Udon.
Marugame Seimen has several locations in Tokyo, often sharing space with other shops and restaurants in the same building. The Family Udon (kazoku udon in Japanese) is only available at stand-alone branches in the suburbs though, so we had to make the trip up north from Tokyo to Saitama Prefecture to try it. At first this system of menu discrimination seemed a little unfair, but it starts to make sense once you see the size of the Family Udon and take into consideration the price of housing in the Japanese city centers. If your family is so big that you need this much udon to feed them, you probably either have to live outside downtown, or you’re loaded enough that you have a private chef and don’t need to go out to restaurants for dinner.
▼ A shockingly large amount of that flour is going to go into our order
Regular-sized orders at Marukame Seimen are handled under the “self-udon” system that’s the norm in Shikoku, the center of udon culture. Essentially cafeteria-style, you grab a tray and order at the counter. The noodles are scooped into a bowl and handed to you directly, after which you grab any pieces of tempura or side dishes you want from their racks, and then pay at the register. Because of the sheer volume of noodles that comprise the Family Udon, however, the order can’t fit on a tray, and also takes about 10 minutes to prepare. Instead, we were given a placard to set on our table while we waited for the waiter to deliver our food.
▼ A regular order of udon
Ostensibly, “Family Udon” refers to the fact that it’s a big enough serving for a family to share. But when our server set the 60-centimeter (23.6 inch) diameter tub of noodles down in front of us, we realized an alternative interpretation is that the thing is easily big enough to give your baby a bath in after you finish eating.
▼ Wait, that doesn’t seem so big…
▼ Oh…
▼ Just a bit larger than the regular size
It was so big that we were lost in thought for a few moments, much like how looking up at the stars in the night sky can force you to ponder your own comparative insignificance. This moment of reflection came at a high cost, however, because while we were lost in thought the udon started soaking up the hot water in the tub, swelling in size like a scene from a science class video on thermal expansion. With the noodles becoming progressively soggier, our reporter knew he had to act fast, but was prevented from diving into his meal by a crafty adversary.
Steam.
As he bent over to scoop up the noodles, Mr. Sato was assaulted by the searing vapor rising from them. Adding insult to injury, each individual strand is extremely long. Dipping them into the accompanying container of sauce is one thing, but getting them from there into your mouth, without them slipping back into the tub and splattering the surrounding area with scalding water, is another. We’d come fully expecting for the size of the dish to be a challenge, but the mechanical difficulties of actually eating it came as a surprise.
That said, bit by bit our man made progress through the Family Udon. Unfortunately, the inability to just chow down at full speed meant the noodles soaked up even more moisture as he ate, which meant an even greater volume to consume.
▼ Time to get to work
▼ Maybe there are some things man just wasn’t meant to do alone
We’re beginning so see why you’re actually supposed to share this with family members or friends. Five of them, to be exact, as the Family Udon is six times the size of Marugame Seimen’s standard individual serving.
For other diners wishing to take on the Family Udon as a solo challenge, we recommend adding Marugame Seimen’s various complimentary condiments, such as green onions, ginger, and tempura flakes as you progress through your marathon meal. Varying the flavors will keep your palette stimulated, and if for some reason you feel like you can put away more than just the Family Udon in one sitting, you can always add a few pieces of tempura vegetables or shrimp to accomplish the same effect.
In the end, Mr. Sato was able to eat about three-fourths of the Family Udon, before finally taping out and bequeathing the rest of his noodles to accompanying correspondent Yoshio. Yoshio easily finished off the task, proving mathematically and unquestionably that a single RocketNews24 reporter can do the work of three ordinary men (as always, we choose to define “work” as “eating lots of inexpensive food”).
▼ OK kids, bath time!
Photos: RocketNews24
[ Read in Japanese ]













Japanese restaurant chain serves Dragon Ball donuts and Senzu Beans this spring
Limited-edition Carbonara Udon will anger noodle purists and pasta lovers 【Taste test】
Oodles of noodles! Udon chain pays homage to all 47 prefectures of Japan with 47 dishes【Photos】
At the London branches of Marugame Seimen, you can change your udon’s broth–but choose wisely!
Udon restaurant chain opens its first-ever drive-through restaurant in Japan
A real-world Pokémon Poké Ball hotel is opening in Japan at a still-secret location [Video]
Tamagotchi evolves into a ring for its 30th anniversary, preorders now open
Family Mart releases Famima convenience store products nationwide, but which ones are worth buying?
Japan’s most popular curry rice restaurant chain, Coco Ichibanya, might be for sale
Finally! Japan’s big three convenience store chains announce rice ball price reductions
Japan Railways announces unlimited-ride train pass for fall travel
One Piece Day 2026 brings new art, music, and new cast announcements
The mystery of Port Store, the Japanese convenience store that looks like a Lawson rip-off
Lawson convenience store opens its first mobile, trailer-style location in Japan
Studio Ghibli unveils new anime calendars and diary planners for 2027
Japan’s final Penguin Suica train cards have already shipped, and when they’re gone, they’re gone
Solo travel in Japan: Hidden beer garden in Tokyo is a haven for single visitors
Japan approves foreign resident visa renewal fee increases of up to 967 percent, starts soon
Farewell Final Ceremony announced for Tokyo’s life-size Gundam statue, will stream live
Hobonichi unveils new 2027 planners, diaries and stationery with One Piece, Suica Penguin, Hello Kitty and a must-buy Mini Techo
Family Mart releases new Human Made Cup Noodle in Japan, with freebies for Nigo fans
Hikaru Utada sings new song in Shinkansen commercial for Japan’s Supreme Class cabins
Mister Donut releases new doughnuts that look and taste like Japanese sweet potatoes
12-year-old British girl who went missing in Tokyo found safe after visiting anime sites around Yokohama
7-year-old boy left behind on Mt. Fuji by his own dad
Sushi Bus: Japan’s first conveyor-belt bus lets you eat sushi while sightseeing around Tokyo
Pokémon Center Online designates first Pokémon items that will require Japanese ID card to buy
Japanese toilet aims to attract foreign tourists but not everybody is happy about it
New Japanese vending machine at Shinkansen station sells cups of ice on platform
Study finds hundreds of people in Indonesia legally named after Naruto, Inuyasha, other anime stars
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Tokyo subway installing new ticket gates that don’t accept payment through Suica or other IC cards
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Watching a one-star certified master udon craftsman at work…at a famous Japanese noodle chain
All-Noodle Artisan Marugame udon restaurant operating in Tokyo, only 30 percent pass test
Londoners marvel at newly-opened Marugame Udon restaurant’s low prices
Major Japanese noodle chain is closing on Christmas Eve so workers can spend time with families
Our reporter transforms into a fancy celebrity to sample the fanciest udon at Marugame Seimen
Investigating the mysterious “Shake Pippi” at Marugame Seimen udon restaurants
Taste-testing Japan’s real-world Dragon Balls and Senzu Beans at Marugame Seimen
Udonuts: Doughnuts containing udon noodles become a thing in Japan
Is this London branch of Marugame Udon as good as the ones in Japan?
Visiting Japan’s one-and-only, and only-for-a-limited-time, Dragon Ball noodle restaurant[Photos]
Udon pudding is about to shake up the noodle scene in Japan
Shake Udon one-hand takeout bukkake noodle cups look to shake udon eating in Japan【Taste test】
All-you-can drink beer, cocktails, and udon noodle meals in Tokyo restaurant for just nine bucks
Popcorn shrimp udon, as in noodles with popcorn and shrimp, now on the menu in Tokyo【Taste test】
Udon Doughnuts boom in popularity, get a whole new look at Japanese restaurant chain
Udon chain’s awesome “Tempura Pass” deal works out to less than 10 yen per piece over five weeks
Our reporters Mr. Sato and Yoshio go chasing their youths at a noodle vending machine 【Pictures】