
Taste-testing the Shirunashi Saba Ramen.
Visiting Costco in Japan is an appetite-stimulating mix of East meets West temptations. You’ll find the same rotisserie chicken and chocolate chip cookies as the chain sells in the U.S., but also a huge selection of things like sake, green tea, and octopus.
On his latest Costco run, our Japanese-language reporter P.K. Sanjun was passing though the prepared food section when he came across a new Japan-exclusive item: Shirunashi Saba Ramen, or Brothless Mackerel Ramen.
Shirunashi ramen isn’t to be confused with tsukemen, where you get a bowl of noodles and a separate bowl of broth to dip them in before each bite. Shirunashi is a no-broth dish using ramen noodles, also sometimes called mazesoba or abura soba (none of which are to be confused with the buckwheat noodles called just “soba”).
P.K. has actually tried a few different mazesoba varieties from Costco Japan, and liked them all. He’s doesn’t know why they’ve gone with a name change to shirunashi ramen for this version, but he grabbed a pack as soon as he saw one because of the mackerel. Saba/mackerel is one of Japan’s favorite types of fish, especially to grill, and P.K. says Costco has earned a reputation among foodies here for selling some really delicious salted mackerel filets. If this brothless ramen had the same quality of fish, then P.K. was definitely down to try it.
As with most items at Costco, it’s a big portion, so even at a price of 1,552 yen (US$10.35) for his pack it still felt like a good value in terms of how much food he was getting. Back home, he took the lid off of the package and was immediately happy to see just how much mackerel was in it.
The heating instructions say to heat everything but the seaweed in the microwave for a bit, then to stir the contents up and heat it a little more. Once that’s done, sprinkle on the seaweed, and you’re ready to eat!
It’s been P.K.’s experience that Costco Japan lets the main ingredients take center stage in its noodle dishes, instead of relying on heavy seasonings. That’s the case once again with the Brothless Mackerel Ramen, which has a simple, straightforward quality to it.
This, however, really lets the mackerel shine, and just like P.K. had hoped, it was outstanding, leaving him incredibly satisfied, and his stomach incredibly happy.
P.K. still isn’t sure why Costco decided to replace the mazesoba name with shirunashi ramen for this dish, but if a rose by any other name would smell as sweet, surely noodles by any other name taste just as good.
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 ]





Yoshinoya’s new ramen doesn’t smell like it tastes【Taste test】
“The most Delicious Cup Noodle in history” – Japan’s French Cup Noodle wins our heart【Taste test】
New contender for the Akihabara ramen crown: Restaurant run by martial arts champ【Taste test】
Tokyo’s new chocolate ramen smothers us with attentive affection for Valentine’s Day【Taste test】
Japan has instant ramen booster packs, and we’re not even trying to restrain ourselves【Taste test】
Japan tripled its departure tax to fund tourism but is using the money on cherry blossoms and bears
Police in Japan looking for who’s responsible for dumping 80 loaves of bread on side of road [Video]
Nike x One Piece collection brings Devil Fruits to sneakers and streetwear in Japan
Data suggests increased bear sightings have led to a decrease in mountain climbers across Japan
Ministop brings bulked up Okinawan-style rice balls to mainland Japan for one week only
Nephew of Studio Ghibli director Hayao Miyazaki serves up Totoro Shaved Ice in Tokyo
Japan approves foreign resident visa renewal fee increases of up to 967 percent, starts soon
Pikachu and other Pokémon evolve into hydration types with Thermos drinkware collaboration [Pics]
Amid foreign sex tourist rise, Japanese government considering outlawing paying for prostitution
Starbucks Japan adds new Customisation Bar to stores, with free ways to hack your food and drink orders
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
Studio Ghibli unveils new interactive stationery dioramas that bring anime movies to life on your desk
Anime fans can now wear a Seiko watch inspired by Japan’s One Piece Shinkansen
7-Eleven Japan brings back best-selling flat croissant that became a hit on social media
Studio Ghibli composer Jo Hisaishi just set three Guinness Records
Foreign hiker on Mt. Fuji loses consciousness and dies, becoming climbing season’s second fatality
We recommend not buying one pack of Japan’s new convenience store corn soup-flavor fried chicken
12-year-old British girl who went missing in Tokyo found safe after visiting anime sites around Yokohama
Air-conditioned dress shirts arrive in Japan to save working professionals from sweltering heat
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
Tokyo’s newest viral dessert is like a Japanese parfait inside a bread bun [Taste test]
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
Japanese vending machine sells freshly squeezed lemon juice with a futuristic light show
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】
Ichiran ramen vs. Ichiran instant ramen: The ultimate taste test right outside the store
Truck drivers love this Saitama Ramen Shop, but will it win our hearts?【Taste test】
Should you add instant ramen toppings before or after adding hot water?【Taste test】
Go shopping with our Japanese reporter as he experiences Costco in the U.S. for the first time
Ramen kaiseki: Japanese restaurant offers first-ever multi-course noodle experience
Korakuen’s Chocolate Ramen returns to restaurants, wins over our most cynical taste tester
Instant vs. Restaurant Ramen Project: Ippudo spicy miso tonkotsu battle【Taste test】
Line of foreign tourists leads us to Akihabara’s meatiest fatty ramen【Taste test】
Our Japanese reporter visits Costco in the U.S., finds super American and very Japanese things
Instant vs. Restaurant Ramen Project: Moko Tanmen Nakamoto deliciously spicy miso【Taste Test】
Our Japanese-born reporter tries California-grown rice, gets his mind blown【Taste test】
We try buying a giant Costco Japan purin that’s not purin and not at Costco【Taste test】
Which Japanese conveyor belt sushi chain has the best mackerel sushi?【Taste test】
Powering up our instant noodles with Nissin Cup Noodle’s instant tempura and abura-age【Taste Test】
Piranha Ramen arrives in Tokyo, and we try the intimidating noodle innovation【Taste test】