- Hangover stew (해장국)
Given Korea's dedicated drinking culture, it's not surprising that Korea's hangover-curing culture is equally as developed, from pre-drinking drinks to post-drinking drinks to a glorious array of spicy and steamy stews and soups.
Made from a beef broth, with cabbage, bean sprouts, radish and chunks of congealed ox blood, the deeply satisfying taste does wonders to kick-start your sluggish brain in the morning.
- Kimchi (김치)
Dating to the Silla Dynasty (around 2,000 years ago), kimchi is the beloved spicy sidekick at every Korean table. It's made by salting and preserving fermented cabbage in a bed of pepper, garlic, ginger and scallion.
Feeling adventurous? Exchange your regular red cabbage kimchi for ggakdugi (chopped radish kimchi), a popular side at gimbap restaurants. Yeolmumul kimchi is a less spicy kimchi made with young radish stalks floating in a tangy soup.
For a selection of handmade kimchi, try online kimchi sellers Real Kimchi.
- Soft Tofu Stew (순두부찌개)
Korean-Food-soft-Tofu-stew---Flickr---Nari-SinSoft tofu, clams and an egg in spicy broth? This popular stew is a classic example of unexpected flavor combinations yielding delightful sensations.
The soft tofu -- which breaks into fluffy chunks in the stew -- holds the flavor of the clam and serves as a relief from the overall spiciness.
Proper sundubu-jjigae comes in a traditional earthenware pot designed to retain heat. The egg is cracked into the stew after serving, and cooks inside the bowl.
- Samgyeopsal (삼겹살)
The best part of eating in a samgyeopsal restaurant is the atmosphere -- a rollicking party punctuated by soju shots, pork strips sizzling on a grill and shouts for "one more serving, please!"
Served with lettuce, perilla leaves, sliced onions and raw garlic kimchi, it's smudged in ssamjang (a mix of soybean paste called 'doenjang' and chili paste called 'gochujang') or salt and pepper in sesame oil. Although originally a Chinese dish, Koreans have taken the noodles and created a thicker, yummier version that holds only a vague resemblance to its Chinese predecessor. (Think of New Yorkers and the wonders they've done with pizza.)
It would not be an understatement to say Korean diets would not be the same without this dish -- most Koreans eat it at least once a week, and have their favorite jjajangmyeon delivery shop on speed dial.
- Chimaek (치맥)
Chimaek, short for "chicken, maekju (beer)" is actually not a dish, but an institution. This glorious pairing features two surprisingly mundane foods: fried chicken and beer.
Neither half, chicken nor beer, is particularly remarkable on its own. But their popularity as a joint entity demonstrates a glorious combination devoured by millions of Koreans every weekend.
- Instant noodles (라면)
Anyone can follow the directions on the back of the ramyeon package to boil water and sprinkle in the spice packet, but connoisseurs will add extras like canned tuna, eggs, and cheese for enhanced flavor. 
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