
A different surprise than the one we’d braced ourselves for.
Here at SoraNews24, we’re not sticklers for tradition when it comes to ice cream. Heck, in the past we’ve tried two different kinds of ramen ice cream, and only really regretted half of one of them.
But even we weren’t sure if Japan’s latest unusual ice cream flavor, Creamy Mayonnaise, was such a good idea. Of course, bad ideas are kind of our area of expertise, and so we quickly snatched up a 140-yen (US$1.30) bar as soon as they went on sale.
We felt just a tiny twinge of confidence in the idea when we remembered that the product, officially the Calorie Monster Cherio Creamy Mayonnaise Flavor, is made by Morinaga, which produces some of Japan’s best-tasting non-crazy frozen treats too. Morinaga proudly boasts that it’s created “Japan’s first” mayonnaise ice cream, though we’re not sure how much pride it should take in that since the previous lack of such a dessert might not be because no one else thought of it, but because everyone else did think of it and then immediately decided it was too weird to even try to sell.
Morinaga had the necessary abundance of courage and/or lack of common sense to bring the concept to market, though, and so here we are. As shown in the diagram above, the Creamy Mayonnaise follows the lead of the rest of the Cherio line by having an identically flavored core and coating with a second flavor in between. However, unlike the chocolate/vanilla of the standard Cherio, this one has white chocolate in the center and cookie-crumb-enhanced outside edge, with the majority of the space taken up by mayonnaise ice cream.
▼ Our dissection got pretty messy, but you can see the white chocolate circled in blue and the mayonnaise circled in red.
We braced ourselves for a shock as we took a bite, and we were definitely surprised…by how normal it tastes! Really, the strongest impression was still white chocolate, so much so that at first, you might not even be able to discern the presence of the Creamy Mayonnaise’s marque ingredient. On subsequent bites, we started to notice a bit of saltiness along with a rich, slightly oily element, but for the most part, the white chocolate steals the show.
On the plus side, this means the Calorie Monster Cherio Creamy Mayonnaise Flavor tastes great, and even when you do notice the mayo, the fact that Japanese mayo has a thicker consistency and less sourness than Wester varieties means it’s not really a problem, but it doesn’t really deliver on the craziness we’d been anticipating with a mix of excitement and fear. Naturally, when life doesn’t give you quite enough craziness, you have to figure out ways to add some craziness to life, so we grabbed a pair of chopsticks, scraped a large dollop of mayonnaise ice cream away from the white chocolate…
…and plopped it onto a salad.
▼ PLOP!
Unfortunately, the bar’s filling is, as we mentioned before, mayonnaise ice cream, and not just straight-up mayo. Because of that, it was a little too cold, and also too sweet, to really work as a salad accompaniment.
In the end, you’re better off sticking to just enjoying the Creamy Mayonnaise Cherio as-is, and while it might not blow your mind like the name might make you expect, this is definitely a superior choice to fish or snake ice cream.
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 ]
Follow Casey on Twitter, where he refuses to give up hope that Morinaga will bring back the orange-flavored Ice Box.






Morinaga Milk Industry unveils Japan’s first mayonnaise-flavored ice cream!
Taste test battle! The new Mister Donut ice cream bar vs. a frozen Mister Donut donut【Taste test】
Osaka’s powerful Crab Ice Crab doesn’t pull any punches【Taste test】
We try Tokyo restaurant’s crab ice cream that tastes more like crab than cream【Taste test】
Putting Japanese soy sauce on ice cream: Just crazy enough to work? 【Taste test】
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Lacquerware supplier to emperor of Japan and Pokémon team up for new tableware
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Unique Starbucks in historic building is one of the most beautiful in Japan
Dove ad slams Japanese beauty ideals, backfires with complaints from public instead
The 10 best Japanese hot spring resorts locals want to go back to again and again
The 10 best ryokan inns in Japan, as chosen by travelers
Six non-traditional osechi New Year’s meals in Japan
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Street Fighter Hadouken Churros to be launched and eaten in Tokyo, Okami pudding on offer too
Japanese woman mistaken for bear
Return of Totoro sequel short anime announced for Ghibli Park
Starbucks Japan releases new zodiac chilled cup drink for 2026
Is this the most relaxing Starbucks in Japan?
Starbucks on a Shinkansen bullet train platform: 6 tips for using the automated store in Japan
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Japanese train company is letting fans buy its actual ticket gates for their homes
Is China’s don’t-go-to-Japan warning affecting tourist crowds in Tokyo’s Asakusa neighborhood?
Starbucks Japan unveils new Christmas goods and a rhinestone tumbler that costs 19,500 yen
Tokyo considering law requiring more trash cans following litter increase in heavily touristed area
Nintendo’s Kirby now delivering orders at Kura Sushi restaurants, but not in Japan
Tokyo event lets you travel back in time, for free, to celebrate 100 years since Showa era start
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s deadliest food claims more victims, but why do people keep eating it for New Year’s?
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】
The top 10 annoying foreign tourist behaviors on trains, as chosen by Japanese people【Survey】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
ZOMG! ICE CREAM! Taste-testing the best autumn-flavored ice cream in Japan
What is Japan’s new “summer matcha” ice cream flavor from confectioner Morinaga?【Taste test】
Sliced mayonnaise and white chocolate now exist in Japan, bringing sandwiches to glorious new era
Avengers ice cream assembles at Baskin-Robbins Japan【Taste test】
The double-cheese-mayonnaise-melon-bread is a mouthful in more ways than one
The SoraNews24 ice cream showdown: A frozen nine-way battle【Taste test】
Ice cream with Japanese dashi kelp stock shocks us enough to try it【Taste test】
Is Japan’s new pudding ice cream bar too much deliciousness to handle? 【Taste test】
Tokyo’s spicy cod roe ice cream: An unexpected dessert that tastes about like what you’d expect
5 of the best ice creams to try in Japan right now【Taste Test】
This ice cream cake has been sold in Japan for 40 years, but it’s almost unknown here
We try Cup Noodle Ice Cream, filled with shrimp, meat, eggs, chives, and madness 【Taste test】
Miso powder on ice cream? Don’t knock it until you’ve tried it, we say!【Taste test】
Häagen-Dazs Japan recommends ice cream with tomato and avocado, so we trust them and try it
Ice cream in fried tofu? Taste-testing ice cream inari, a substitute for ice cream cones【Taste test】
Fried Oyster Ice Cream: the taste of the sea in a Japanese soft serve dessert【Taste Test】
Leave a Reply