
145-year-old Niigata brewery gives us some confusing but intriguing advice.
The brewery Kikusui Shuzo has been in business in Niigata Prefecture in 1881, so they know a thing or two about making sake. We figure they’ve also got a lot of people on their staff who know a thing or two about the best ways to drink sake too, so we’re inclined to take their advice on how to enjoy their products, such as their flagship premium canned sake, Kikusui Funaguchi.
▼ Kikusui Funaguchi
So ordinarily we’d have taken the company’s recent tweet, which said “You should not dip castella cake into Funaguchi,” as sage wisdom. However, the tweet also said “We tried doing this. The results were dangerous.”
Seeing as how dipping cake into sake isn’t really a thing in Japan, and thus no one would have thought to do this anyway, we began to think that Kikusui Shuzo doth protest too much about this idea, and so while we weren’t sure if we were actually following or defying their advice, we decided to try it for ourselves.
For the uninitiated, castella is a kind of sponge cake. Based on recipes brought to Japan by Portuguese traders in the 16th century, the ingredients of modern castella include mizuame, a clear molasses used in traditional Japanese confectionaries, giving castella a unique spot in the sweets pantheon as arguably both a western and a Japanese-style dessert. The flavor is sweet, but not cloyingly so, making castella something that mature adults enjoy as much as young children do, if not more.
After a quick trip to the store, we had an open can of Kikusui Funaguchi and a few slices of castella in front of us, and were ready to get this unusual taste test started. Picking up our fancy fork, we stabbed a piece of cake and dunked it directly into the can of sake.
This goes against several hundred years of established protocol for how to eat castella and drink sake, so we couldn’t help feeling a bit of mental resistance as we did it. Still, we did have Kikusui Funaguchi’s permission (we think) to do this, so we didn’t feel too bad about it…and we didn’t feel bad at all after we tasted it.
The results were delicious, so delicious that we could see why Kikusui Shuzo had felt the need to treat this as a forbidden art of gastromancy. Because of its soft, spongey consistency, the castella quickly soaks up a large amount of sake, and as you take a bite the flavor of the rice wine steadily spreads across all of your taste receptors. The gentle sweetness of the castella draws out more of the sake’s sweet notes too, but without stumbling into the sort of artificial-feeling flavors you get with a conventional sweetened cocktail.
The experience is also very different from, say, a rum cake. While cakes baked with alcohol retain a hint of their alcoholic flavor, most of it is lost in the cooking process. When dipping already-baked castella into sake, though, all of the beverage’s flavor and alcohol content is retained.
▼ Arrow indicating our sake-dipped pieces of castella
It’s a bit of a toss-up as to whether this combination will be more satisfying to those craving cake or those craving sake, but if you’re someone who like both of them, odds are you’ll find a lot to love here. Even if you can’t find Kikusui Funaguchi specifically in your neck of the woods, we have a hunch other brands of sake will also work well as long as they’re not too dry in terms of flavor profile. Types of sponge cake other than castella might also be feasible candidates, but you’ll want to avoid extra-airy cakes, since if they soak up too much sake the slices might tear off from the weight of the liquid before you can bring the fork up to your mouth. We also recommend against tossing the cake slices into your sake and leaving them to soak, since that’ll give you a soggy lump with the flavors of the cake completely covered up. Instead, you want to follow the same style as you would when dipping a piece of sushi into soy sauce, a quick dunk to add the flavor but without leaving the morsel to linger in the liquid for too long.
So thanks, Kikusui Shuzo, for letting us know about a great new way to enjoy sake, even if it took a little reverse psychology to get us to try it.
Reference: Kikusui Shuzo, Kikusui Shuzo official Twitter account
Top image: SoraNews24
Insert images: Kikusui Shuzo, SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]






Sake bread and cakes, using one of Japan’s best brews, can only be bought at one Tokyo bakery
Beyond fruit sandwiches — Japan has cake sandwiches too!【Taste test】
Sake-brewing company produces one-chug wonder: boozy boba in a bottle【Taste test】
The sake from Evangelion goes great with Japan’s poisonous blowfish…from a can 【Taste test】
Japan’s Mos Burger Dassai sake milkshake is here, but is it any good?【Taste test】
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Poop is in full bloom at the Unko Museums for cherry blossom season
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Fives places around Japan to appreciate the plum blossoms this season
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
Cute coffins now available at Tokyo’s coffin relaxation salon[Photos]
Sakura Totoro is here to get spring started early with adorable pouches and plushies
The other side of Shibuya Station has a great restaurant for trying tamagokakegohan
Foreign worker in Japan fends off armed robber with single word, gets no respect from local media
What’s up with the secret basement at this Japanese train station?
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
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Now is the time to visit one of Tokyo’s best off-the-beaten-path plum blossom gardens
Can you eat lunch in Tokyo for less than 500 yen?
New Family Mart cinema opens inside Japanese airport
Japan releases first official sakura cherry blossom forecast for 2026
Archfiend Hello Kitty appears as Sanrio launches new team-up with Yu-Gi-Oh【Pics】
China’s don’t-go-to-Japan warning looks to be affecting tourist crowds on Miyajima
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
You’re not supposed to drink this special sake from Japan【Non taste-test】
Japan has new sake Kit Kats produced by a 393-year-old Hyogo sake brewer
Sushi vinegar for your McDonald’s hamburger? We create the Japan dip sandwich【Taste test】
Japanese bakery’s giant strawberry cake looks the part, but does it taste it? 【Taste test】
Castella cake ice cream debuts in Japan, and it’s one of the strangest things we’ve ever tasted
Does adding sake to your instant ramen make it taste better? We try Japan’s latest food trend
Brand-new premium sake Kit Kats are out in Japan, and they’re amazing【Taste test】
Tabasco Japan says you should add hot sauce to your beer, but are they right?【Taste test】
Sake and Japanese convenience store ice cream go great together, but there’s an even better combo
Taste-testing Japan’s “I love Obama” cakes【Taste test】
Lawson’s exclusive sparkling sake in a can is filled with surprises
Matcha cake from one of Japan’s top tea towns has a one-month wait, but is it worth it?【Taste test】
Roasted nori seaweed cake might be a dessert even more Japanese than matcha sweets【Taste test】
Taste-testing every single sakura sweet and cherry blossom drink we could find at Mujirushi
Cherry blossom beer. Taste test. Need we say more?
Testing 23 different yakiniku dipping sauces from the Japanese supermarket to find the top three