
You can remix your ramen broth into a second Japanese cuisine favorite with almost zero effort.
Eating a cup of instant ramen is a roller caster ride of emotions. It starts with the giddy anticipation as you boil the water and let the noodles cook. Then, of course, there’s the elation as you take your first bite. Finally, and sadly, there’s the bittersweet emptiness when you realize you’ve eaten all the noodles, and have none left.
Recently, though, we found out about a way to turn that end of ramen frown upside-down by using your leftover broth to make chawanmushi, Japanese savory egg custard. What’s more, the recipe comes from the highest authority, Nissin, makers of Cup Noodle.
Don’t worry, since this is an instant ramen-related recipe, the list of ingredients, equipment, and steps are short and simple. All you need is:
● A cup of instant ramen
● An egg
● A microwave-safe coffee mug or teacup
● Plastic wrap
Step 1
Make and eat the cup of instant ramen like you ordinarily would (i.e. add boiling water, slurp up the noodles, and murmur “Oh man that’s goooood”). However, make sure to leave some broth, and if you can resist the urge to eat the shrimp, it’ll make your chawanmushi even tastier.
Step 2
Once you’re done with the noodles, crack the egg and pour it into the leftover broth.
Step 3
Stir the egg and broth together. We suppose you could use a whisk if you want to get fancy, but whatever chopsticks you were using to eat the ramen with should work fine too.
Step 4
Pour the broth and egg (and shrimp, if you saved them) into your microwavable cup. Again, if you’re feeling classy or want your egg tart to have a super smooth texture, you can use a tea strainer, but it’s not a must.
Step 5
Cover the cup with plastic wrap and pop it in the microwave. At 200 watts, two minutes and 45 seconds should do the trick, and that’s all there is to it!
The result is a soft, fluffy, and surprisingly visually appealing chawanmushi, and it tastes even better than it looks. Compared to the egg tart you might be served as part of an expensive multi-course kaiseki meal, the flavors are stronger, but this is a delicious and accessible take on the dish, with plenty of creamy, savory flavor.
Of course, if you want a milder flavor, or just for the egg to take more of a lead role in the flavor department, all you have to do is use less broth, which is easy to do by pouring however much of the liquid you want to use into your microwavable cup and then adding the egg to it. We did two Cup Noodle trials, one with about 150 milliliters (5.1 ounces) and one with 100 milliliters, and both had their own unique appeal.
Since we’d bought a six-pack of eggs, we had four left, so we decided to experiment with four other kinds of instant noodles. We can report that this super easy chawanmushi recipe also works well with Cup Noodle Seafood and Nissin Chicken Ramen, both of which added their marque flavors to the mix. Things got extra special, though, when we used some Donbei instant udon, since the dashi (bonito stock) used for udon is also a key ingredient in classical chawanmushi, resulting in an elegant, refined flavor.
▼ The udon dashi chawanmushi also had a more delicate color to it.
And on the other end of the spectrum, Cup Noodle Curry made for a filling and fantastic fusion chawanmushi, especially after we added in some cheese.
So that’s five for five in our taste tests, and really, it looks like this ramen remix chawanmushi recipe will work amazingly with pretty much any kind of instant noodle broth, and with so many varieties out there, we see ourselves eating a lot of egg custards in the future.
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 ]












Don’t throw away your leftover ramen broth! Use it to make ice cream sauce instead!【Recipe】
How to turn Cup Noodle instant ramen into delicious Osaka-style dumplings【SoraKitchen】
The internet’s latest culinary masterpiece: Cup Noodle Steamed Egg【Taste Test】
Making spicy instant ramen fried rice, Korea’s latest viral food trend【SoraKitchen】
Why throw away your leftover ramen broth when you can use it to make awesome ramen rice instead?
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
161-year-old Kyoto confectionary maker releases new edible Pokémon lineup
7-Eleven Japan is releasing Greedy chocolate chip and whipped cream sandwiches
Saltiest ramen in Japan? Ikebukuro White goes viral for crazy salt levels
7-Eleven Japan now has ramen machines…but only at 41 stores
7-Eleven Japan upsizes popular products like egg sando and pork ramen but how big are they really?
Live-action Princess Mononoke stage cast appears in costume for first time[Video]
Nintendo reveals live-action Legend of Zelda movie is coming sooner than we’d thought
“They’ve got be kidding me.” – Mayor in Japan fed up with off-season Mt. Fuji hikers needing rescue
Starbucks Japan releases two new “chunky” drinks… and matching gel designs for our nails
Japan now has gyoza doughnuts, and they taste like no other doughnut we’ve tried before
Mt. Fuji hot spring inn gets even more beautiful after dark with Firefly Festival
Japan releases new ramen sandwiches… that don’t taste like ramen
This train station bento boxed lunch shop has been in business for nearly 100 years
Don’t miss the Tokyo Tower City Light Fantasia ~Summer Landscape 2026~ event during your travels
McDonald’s Japan hack: Make a Chicken Tatsuta in five minutes anywhere in the world
Japanese criminals are now using crabs to hunt for burglary targets
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
The average age of Japan’s hikikomori shut-ins is getting older, survey shows
Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
New Kyoto Converse sneakers celebrate Japan with traditional kimono fabrics for your feet
Brand-new Pokémon manhole covers coming to help the recovery of a disaster-stricken part of Japan
Japan’s awesomely beautiful Alpen Route snow corridor is now open
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Injuries on stairs in Tokyo highlight an overlooked design flaw
Move aside, convenience store egg sando – there’s a better version of the iconic sandwich in Japan
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
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
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
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
How to make yoghurt ramen with instant noodles
Does the Shirotama Maker kitchen gadget really create perfect instant ramen eggs?
Is “The Most Annoying but Most Delicious” ramen from 7-Eleven truly the most delicious?
Which conveyor belt sushi place’s chawanmushi egg custard is the best? We investigate【Taste Test】
Nissin’s new Bukkomi Meshi is the guilty pleasure of rice plus instant ramen broth
Perfect instant ramen eggs every time! Cup Noodle’s Nissin creates Shirotama Maker kitchen gadget
Cup Noodles Fried Rice: Super-easy recipe will make you a potluck or campsite hero【SoraKitchen】
We try an easy, cheesy, Italian-inspired camp meal using instant noodles【Recipe】
Cup Noodle Pro is Nissin’s latest way to up its instant ramen game
How to make your own Pringles-flavor instant noodles【SoraKitchen】
Looking for a more accessible “Ramen Broth Hardening Powder”? Look no further!
Cup Noodle instant ramen adds disturbingly named new topping: “almost squid!”
Amazing new powder turns ramen broth from a liquid back into a solid, but why?【Video】
Cup Noodles Breakfast: a curse against instant ramen or the best thing since sliced bread?
Boston clam chowder-flavored instant ramen docks in Japan
Instant vs. Restaurant Ramen Project: Ippudo spicy miso tonkotsu battle【Taste test】