
We try two of the unbelievable new offerings from Family Mart.
Japanese convenience store food has a reputation for being surprisingly good, but now Family Mart is releasing a lineup that’s designed to be bad, in the sense that they’re so decadent it’s wrong for them to exist.
Called the “Haitoku no Konbini Meshi” (“Immoral Convenience Store Food“), the new range consists of five meals but out of all of them, one in particular is attracting attention.
▼ The Whole Boiled Egg Rice Ball.
It certainly makes an impact visually, with its boiled egg centre, but the weird thing about it is it’s not that unusual in the grand scheme of things, as Japanese rice ball specialist chain Gonbei is actually known for selling boiled egg rice balls.
▼ So, what makes this particular rice ball immoral?
Well, for starters, it’s enormous, being bigger than a fist, which makes it slightly larger than the rice balls at Gonbei.
The cross-section reveals that yes, there is an entire egg stuffed in here, and it sits on a thin layer of mayonnaise for extra flavour.
Upon taking a bite, this mayonnaise takes centre stage, as it contains a rich garlic paste imbued with pork back fat, which instantly hits the taste buds with flavour. The gentle softness of the egg helps to soften the rich garlicky notes before mellowing out even further with the seaweed-wrapped seasoned rice, combining to create bagfuls of umami deliciousness.
The rich and fatty flavour of the mayonnaise certainly tips this rice ball over to the immoral side of the culinary world, so we were keen to find out how the Gonbei rice ball would compare.
At 280 yen (US$1.89), this rice ball is slightly less expensive than the Family Mart version, which is priced at 298 yen, and it comes wrapped in loose-fitting cling film which gives it a homemade appearance.
▼ As for size, it’s a touch smaller than the Family Mart rice ball, but still a generous portion.
Cutting it in half reveals that this egg appears to be more seasoned and less hard-boiled, making it a great option for lovers of softer eggs. This is likely a key benefit of the smaller specialty chain, as it can produce ingredients that haven’t been cooked within an inch of their lives, unlike Family Mart, which has a much larger distribution and therefore more stringent concerns when it comes to food safety.
▼ As for the flavour? Well, it’s still mighty delicious.
As this rice ball doesn’t contain any mayonnaise, its great flavour is a testament to the skill and high-quality ingredients in its making. The rice was perfectly cooked and still slightly warm, while the boiled egg was flavoursome, creating a harmonious blend on the palate.
▼ Family Mart’s Boiled Egg Rice Ball (top), Gonbei’s Boiled Egg Rice Ball (below).
They’re both delicious rice balls, but if you’re looking for a rice ball that doesn’t rely on mayonnaise to provide the flavour, then Gonbei is definitely worth your yen. But then again, if you’re looking for something that’s convenient, and let’s face it, more immoral, then Family Mart is the way to go!
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 ]











Japanese convenience store releases a new bento sandwich, but is it better than a bento rice ball?
Which Japanese convenience store has the best plain onigiri rice balls?
Are Family Mart’s new “exquisite” rice balls worth the high price tag?
The best-selling rice ball at Family Mart is…SPAM onigiri?
7-Eleven now sells rice burgers in Japan, blurring the line between fast and convenience store food
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Massive manga collaboration bringing 100 years of Shueisha manga to Uniqlo T-shirts【Photos】
Does a poopy butthole translate to lottery-winning riches in Japan? The results are in!
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Japanese women showing rebounding interest in giving Valentine’s Day chocolate【Survey】
Totoro cream puffs and Catbus cookies are finally available in downtown Tokyo
Capsule hotel inside Narita Airport is like a futuristic spaceship
Japanese women show continuing decline in how much they expect a husband to earn in survey
We try an unusual buffet of dishes made from wild game at a roadside stop in Chiba
What’s the best way to spend 1,000 yen at the Seria 100-yen chainstore in Japan?
Starbucks Japan releases new Frappuccino and latte for Valentine’s Day
Our 52-year-old pole dancing reporter shares his tips for achieving your New Year’s exercise goal
Ramen restaurant’s English menu prices are nearly double its Japanese ones, denies discriminating
Giant hotel rooms in Osaka reflect the new non-niche face of travel in Japan.
Princess Mononoke magnets return just in time to treat yourself to awesome anime decorations
10 times to avoid traveling in Japan in 2026
What’s inside Starbucks Japan’s fukubukuro lucky bag for 2026?
Starbucks Japan ready to get Year of the Horse started with adorable drinkware and plushies【Pics】
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
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
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
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Japanese convenience store packs a whole bento into an onigiri rice ball
We find the best “homestyle” onigiri at a super local chain of convenience stores
The surprising semi-secret ingredient in many Japanese convenience store rice balls: oil
Family Mart releases new rice balls with Bongo, Japan’s most famous onigiri restaurant
Japanese convenience store issues rice ball recall, foodies would’ve loved to eat them anyway
Which Japanese convenience store sells the best beef stew?【Taste test】
Which Japanese convenience store sells the best butter chicken?【Taste test】
Which Japanese convenience store sells the best onigiri rice balls?【Taste test】
Survey ranks convenience store rice balls – salmon, sea-dwelling poultry & plants steal the show
Are high-end convenience store rice balls really packed with more ingredients?
Japanese convenience store chain creates a burger-flavoured steamed bun, but is it any good?
What makes this new Japanese convenience store chain better than 7-Eleven?
Which Japanese convenience store has the best salted onigiri rice balls?
Japanese convenience store showdown – Who’s got the best ikura rice balls?【Taste test】
Onigiri Bread from Japanese convenience store chain changes everything we know about rice balls
Leave a Reply