What Is Han River Ramen, and Where Are the Machines?

Han River ramen is a do-it-yourself bowl of instant ramyeon, cooked on an automatic ramen cooker and eaten outdoors in one of the Hangang parks that line the river through Seoul. The cooker combines an induction plate, a water dispenser and a timer, so you never touch a pot or a kettle. What started as a convenience-store shortcut has become one of the things visitors put on their Seoul list, and in September the noodle maker Ottogi even launched a packaged noodle called Hangang Ramen, built to recreate the cooker-made taste at home.

You'll find the machines outside or just inside the convenience stores in the parks, usually in a row under an awning with picture instructions above each cooker. The busiest stops for visitors are these:

Not every store in every park has a cooker, and opening hours differ by store and by season. Before you set out, search the park name with "convenience store" in a map app and check the hours. Some stores close earlier on winter nights than in summer.

How Do You Use a Han River Ramen Machine?

The machines look technical, but the whole process takes about five minutes and the steps are the same at most stores:

1. Buy your ramyeon and a cooking bowl. Pick any pack of instant ramyeon inside the store. The cooking bowl is a paper or foil bowl sold next to the noodles or at the counter, sometimes bundled with the ramyeon as a set. A single pack usually costs a couple of thousand won or less. Grab disposable chopsticks at the counter.
2. Fill the bowl. Outside at the cooker, put the noodle block, the soup powder and the flakes into the bowl. Don't add water. The machine measures it for you.
3. Set the bowl on the cooker. Place it in the center of the induction plate, under the spout.
4. Start the machine. On many models you scan the barcode printed on the bowl, which sets the water level and time; on others you press the start button. Water pours in and the timer starts counting down, usually from about four minutes.
5. Add your extras when it boils. If you bought an egg or cheese, add it once the water is boiling and stir well. The instructions at many stores warn that a bowl burned by egg stuck to the bottom won't be replaced.
6. Lift it off when the timer ends. The bowl gets hot, so hold it by the rim and carry it level.

The picture instructions above the cookers are often in English, Japanese and Chinese as well as Korean. If you're unsure, the staff inside are used to showing visitors how it works.

What Should You Eat With Han River Ramen?

Ramyeon is the anchor, but the convenience store has everything you need to turn it into a meal. These are the add-ons you'll see people carrying out to the lawn:

• An egg. The most popular extra. Cracked in once the water boils and stirred, it turns the broth softer and richer.
• A slice of cheese. Laid on top at the end, it melts into spicy ramyeon and takes the edge off the heat.
• Triangle kimbap. Rice and ramyeon broth is a classic pairing. Dip it, or finish the broth with it.
• Fried chicken. Plenty of people bring chicken and drinks to share, so the ramen becomes one dish on a bigger picnic.
• Something sweet. Banana milk or a cold dessert from the fridge rounds things off.

Choosing the ramyeon itself is half the fun. The shelves usually carry a wide range, from mild to fiery, so try a brand you can't easily buy at home. If you're new to Korean spice levels, start with something mild and save the fire-hot ones for a second round. For more ideas on what to pick up, see our Korean convenience store food guide, and for the season's limited releases, our list of winter convenience store must-tries.

Want the taste after your trip? Ottogi's Hangang Ramen comes in packs sold at convenience stores across the country, and its packaging carries the name in English, Chinese and Japanese, so it's easy to spot on the shelf and to pack in your luggage.

Han River Ramen on a Winter Evening, and How to Clean Up

Summer is picnic season, but a bowl of hot ramyeon arguably makes more sense in winter. The parks are quieter, the city lights come on early, and the steam rising off the bowl is half the point. Seoul evenings in late autumn and winter are cold, often near or below freezing after dark in December, so dress for it: a long padded coat, gloves, and a hot pack in your pocket. Some park stores have tables under an awning, which helps when the wind picks up.

A few things change in the cold season. The Moonlight Rainbow Fountain on Banpo Bridge stops at the end of October and returns in spring, so a winter visit is about the night view rather than the fountain show. Lawns can be damp, so bring a mat or eat at the tables. If you're planning a longer evening by the river in the warmer months, our Han River night picnic guide covers the parks, delivery food and the fountain.

Cleaning up is part of the ritual, and it's simple:

• Leftover broth shouldn't go on the grass, into the river or into a general trash bin. If you can't see a marked spot for it, ask the staff where to pour it.
• Bowls, chopsticks and wrappers go into the bins at the store. Seoul has announced recycling bins with separate slots for bottles, cans and plastics across the Hangang parks, so sort what you can.
• Don't smoke near the stores and cookers. The areas are signposted as non-smoking.

Leave the table as you found it, and the next person in line gets the same easy bowl you did.