
And if you can, should you?
In a shocking turn of events, we recently found ourselves with leftover French fries. And we’re not talking about one or two unclaimed fries, but multiple orders of them.
We’re as surprised as anyone, given that SoraNews24 HQ is usually a sort of black hole in which unclaimed food is absorbed and devoured with cosmic-level force. But even our collective company stomach has its limits, and we’d reached them the other day after we noticed we had a whole bunch of free French fry coupons for McDonald’s Japan which were all about to expire, so we used them all at once.
This sudden influx of French fries itself was cause for joy, but as our stomachs filled and our giddiness wore off, we were left with a grim premonition. French fries never taste quite as good after they’ve cooled down and been reheated in the microwave, which meant we now had a couple of sub-par spud snacking sessions in our near future…
…or did we? It’s been said that crisis and opportunity are two sides of the same coin, and so our Japanese-language reporter Ikuna Kamezawa came up with a plan to flip things around. Instead of eating diminished reheated French fries, she would use our leftover McDonald’s fries to make croquettes.
She’d need a few other ingredients to do this: an onion, some ground meat, butter, flour, eggs, breadcrumbs, and cooking oil. Starting with the onion, she peeled and minced it, then added it to a frying pan along with the ground meat (in our case a mixture of ground beef and pork) and butter to sauté them together.
▼ Ikuna used half an onion, about 70 grams (2.5 ounces) of ground meat, and roughly 8 grams (0.3 ounces) of butter.
Now it was time to get our leftover McDonald’s French fries out of the fridge and start them on their path to rebirth. We had two medium-size orders to work with.
Rather than try to mash them up cold, Ikuna put them in the microwave for three minutes so that they’d get very hot. Then she got to mashing with her spatula.
This turned out to be surprisingly difficult. Though the fries were looking droopy and squishy after being reheated, they weren’t easy to crush with the spatula.
Ultimately, Ikuna ended up using the spatula’s edge to stab at the fries, rather than trying to press on them with the flat face. After about 10 minutes, they looked like this.
The next step was to combine the quasi-mashed potatoes with the sautéed meat and onions…
…and then to form the croquettes, which Ikuna did by hand, placing a scoop of the mixture in her palm and pressing it like she would when making a rice ball. Our two medium-sized orders of fries were enough to make six croquettes.
However, maybe because the fries weren’t completely mashed, the croquette cores Ikuna formed felt like they were on the verge of crumbling almost immediately. This meant there was a ticking clock as she applied their breading, and she moved as quickly as she could to cover the croquettes first in a layer of flour, then a coating of egg, and finally an outer layer of breadcrumbs.
Now all that was left was the final step, frying them in oil for three or four minutes, after which her leftover McDonald’s French fry croquettes were complete!
Ikuna, by the way, would like us to remind everyone that her croquettes do not look sloppy or unprofessional at all, but are simply bursting with rustic homemade charm.
So, how do they taste?
Not bad! But also not really great…?
First thing first: they do taste like croquettes, so in terms of answering the simple question of whether or not you can use leftover McDonald’s fries to make croquettes, the answer is “Yes!”
However, the flavor was definitely on the mild side. As you might have noticed, Ikuna didn’t add any salt to her croquettes, figuring that the McDonald’s fries were probably already salty enough on their own. However, she also didn’t add any pepper, which is a common croquette ingredient but not something that the McDonald’s fries were bringing to the party by themselves.
There was also a bit of a discordancy between the mild flavor of Ikuna’s croquettes and how oily they were, perhaps owing to the potato part now being twice-fried. The potato filling was also noticeably firmer than it is with conventional croquettes made with mashed potatoes.
But again, they weren’t bad, and when Ikuna added some of the Worcester-like sauce used for croquettes in Japan, the overall eating experience was pretty good, at least in line with normal croquette expectations.
So since we’ve already answered that you can do it, the next question is whether or not you should make croquettes with leftover McDonald’s fries, and the answer to that isn’t quite as simple as “Yes” or “No.” Using McDonald’s fries didn’t grant our croquettes any special magical qualities beyond the results you could expect with using regular potatoes and mashing them, so we wouldn’t go out of our way and make a French fry run with the specific premeditated purpose of using them as croquette ingredients.
But on the other hand, the croquettes we made did taste pretty good, and this was definitely more fun than wistfully eating a plate of limp leftover fries that had been reheated in the microwave. So in the unlikely event that we ever end up with leftover fries again, we’ll definitely have to keep the croquette option in mind.
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 ]

















How to turn cold McDonald’s fries into the best hash browns you’ve ever tasted
McDonald’s announces end of French fry rationing in Japan
Open wide! It’s time for a showdown between McDonald’s Japan’s and Komeda gratin croquette burgers
McDonald’s Japan’s Gurakoro burgers, like a cup of hot soup in sandwich form, return this month!
Japan’s Great Gratin Croquette Burger War begins: McDonald’s vs. Lotteria【Taste test】
Family Mart releases huge range of cute sweets for Cat Day in Japan
Downloads of 39-year-old Guns N’ Roses song increase 12,166 percent thanks to Gundam
Is China’s don’t-go-to-Japan warning affecting the lines at a popular Tokyo gyukatsu restaurant?
A spotlight on Japanese singles figure skating: Jumping into the 2026 Olympics【Pt. II】
Naruto jerseys coming to Major Leage Baseball theme nights, Hello Kitty to take over a field
Japan’s first all-matcha ramen restaurant is now open in Kyoto【Photos】
Studio Ghibli releases giant Totoro plushies in Japan
Tiny house by Muji finally goes on sale in Japan
Here comes a new katsudon: ice cream katsudon?!?
Our top 3 cafes in Azabudai Hills, Tokyo’s newest and possibly swankiest shopping complex
Yokai are descending upon Tokyo this spring in the latest immersive art experience
New Studio Ghibli stamps leave an impression on your stationery…and your heart
Cherry blossom forecasts map shows Japan’s OTHER sakura season is starting right now
Three beautiful places to see Japan’s plum blossoms after starting your day in downtown Tokyo
Japanese women sound off on their minimum height requirements for a husband【Survey】
Japanese man gets drunk and falls asleep on Tokyo streets, then gets robbed by foreign national
Japan has a new bar just for people thinking about quitting their jobs, and the drinks are free
420 million yen in cash-filled suitcases stolen on Tokyo streets, incidents at Haneda and Hong Kong follow
Japan’s suicides fall to lowest recorded number ever, but one demographic hits all-time high
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Japan releases first official sakura cherry blossom forecast for 2026
10 times to avoid traveling in Japan in 2026
Archfiend Hello Kitty appears as Sanrio launches new team-up with Yu-Gi-Oh【Pics】
Starbucks Japan releases new Frappuccino and latte for Valentine’s Day
China’s don’t-go-to-Japan warning looks to be affecting tourist crowds on Miyajima
Our 52-year-old pole dancing reporter shares his tips for achieving your New Year’s exercise goal
Studio Ghibli releases new “komorebi” plush toys from Princess Mononoke and Spirited Away
Ramen restaurant’s English menu prices are nearly double its Japanese ones, denies discriminating
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
McDonald’s Japan reminds everyone that French fries are vegetables to celebrate Vegetable Day
As McDonald’s Japan restricts French fry sales, rival boosts its fry sizes by 25 percent, for free
We try to duplicate McDonald’s Japan’s Tsukimi mochi pie with 3 simple ingredients【SoraKitchen】
McDonald’s Japan releases new “Ultra” prawn and macaroni croquette burger
McDonald’s adding new French fry flavor just for Japan based on nostalgic student snack
McDonald’s Japan’s Fuwatoro Tamago Noko Demi Gurakoro is coming to warm us up this winter
How to make your own McDonald’s Japan-only gratin croquette burger
Sayonara, spuds! McDonald’s Japan halts sales of medium and large orders of French fries
Brace yourself – McDonald’s Japan about to start selling chocolate French fries
How to make a McDonald’s hamburger twice as delicious: Turn it into a waffle!【SoraKitchen】
McDonald’s Japan is adding another spooky flavor to their Halloween Choco french fry lineup
How to turn McDonald’s chicken nuggets into tasty katsudon in five minutes【SoraKitchen】
Kids in Korea Order $250 in French Fries, Piss Off Everyone at McDonald’s and on the Internet
Chicken McNugget rice cooker rice — Can it beat KFC rice cooker rice?【SoraKitchen】
The difference between McDonald’s in Japan and Spain
Leave a Reply