How To Make Korean Bulgogi Marinade

Bulgogi marinade is soy sauce, sugar, sesame, garlic, and grated Asian pear, and the pear is not a sweetener. It contains calpain, a protease that breaks down muscle protein, which is why thin-sliced beef comes out of this marinade tender in a way that a soy-and-sugar mixture alone cannot manage. Understand that one ingredient and the whole recipe makes sense.

Equipment

Grating the pear is the fiddly part and worth doing on the fine side of a box grater rather than in a machine, which turns it to juice and loses the pulp. I mix in the Large Capacity Stainless Steel Mixing Bowl with Scale, which lets me weigh the sugar and soy directly rather than guessing. The Mini Electric Garlic Chopper handles the garlic and ginger in seconds. For cooking, a 12-inch carbon steel wok gets hot enough to char the sugar rather than stew the meat, and an enameled cast iron grill pan is the indoor stand-in for a tabletop grill.

Ingredients

1.5 pounds beef ribeye or sirloin, sliced very thin against the grain
1/2 Asian pear, peeled and finely grated, about 1/2 cup with juice
1/3 cup soy sauce
3 tablespoons light brown sugar, or 2 tablespoons honey
2 tablespoons toasted sesame oil
2 tablespoons mirin or rice wine
6 garlic cloves, minced
1 tablespoon fresh ginger, grated
4 scallions, thinly sliced
1 tablespoon toasted sesame seeds
1/2 teaspoon black pepper, freshly ground

Ingredient Selection

Asian pear is the traditional choice and the most effective. If you cannot find one, a Bosc pear or half a grated kiwi will work, but kiwi is dramatically more aggressive, use half as much and cut the marinating time by two thirds or the beef will go to mush. Regular apple works and is milder.

Use toasted sesame oil, the dark amber kind, not plain sesame oil. It is a finishing oil with a low smoke point, and it is here for aroma. The beef should be sliced roughly an eighth of an inch thick; freezing it for 30 to 45 minutes first makes this far easier to do by hand. Well-marbled ribeye is traditional, sirloin is the leaner and cheaper option.

Method

Mise en Place

Slice the beef: Freeze for 30 to 45 minutes until firm but not solid, then slice thinly against the grain.
Grate the pear: Peel and grate on the fine side of a box grater, keeping all the juice.

Build the Marinade

Dissolve the sugar: Whisk the soy sauce, brown sugar, and mirin together until the sugar fully dissolves. Undissolved sugar will not distribute evenly.
Add the rest: Stir in the grated pear and its juice, sesame oil, garlic, ginger, scallions, sesame seeds, and black pepper.

Marinate

Coat the beef: Add the sliced beef and mix by hand until every piece is coated. Cover and refrigerate.

How to Marinate

Because the pear is enzymatic rather than acidic, the failure mode here is different from a citrus marinade. It does not turn the surface chalky, it keeps softening the interior, and left too long the beef loses its structure entirely and turns pasty.

Thin-sliced beef: 30 minutes minimum, 4 hours ideal, 12 hours maximum.
Thicker beef, like short rib for galbi: 4 to 12 hours.
Chicken thighs: 2 to 12 hours.
Pork belly or shoulder: 4 to 24 hours.
If substituting kiwi: cut every time above by two thirds.

Refrigerate throughout. Utah State University Extension notes that chicken should sit between 2 and 24 hours and denser cuts can go 24 hours or longer, but the enzyme in the pear is the limiting factor here rather than the soy.

Serving and Application

Cook it hot and fast in a single layer. A crowded pan drops the temperature, and the sugar in the marinade then simmers rather than caramelizes, which is the difference between bulgogi and beef stew. Work in batches if you have to. Thirty to ninety seconds a side is usually enough for thin slices.

Serve with rice, lettuce leaves for wrapping, and kimchi. The scallions and sesame seeds that come out of the marinade are part of the dish, do not strain them off.

Popular Variations

Galbi: The same marinade on bone-in short ribs, cut flanken style across the bones, grilled over charcoal.
Spicy bulgogi: Two tablespoons of gochujang whisked in, common for pork.
Dwaeji bulgogi: The pork version, typically spicier and marinated longer.

Make Ahead, Storage and Food Safety

Made without meat, the marinade keeps 5 days refrigerated, though the pear enzyme weakens over time so make it fresh if tenderizing matters. Marinated raw beef can be frozen directly in the marinade for up to 3 months, and it continues to tenderize slightly as it thaws.

Marinade that has held raw beef must be boiled for a full minute before it can be used as a sauce, per University of Illinois Extension, or reserved clean beforehand.

History

Bulgogi translates roughly as "fire meat," and its ancestry is usually traced to maekjeok, a skewered and seasoned grilled meat associated with the Goguryeo period. The dish as recognized today, thin-sliced beef in a sweet soy marinade, took its modern form in the twentieth century, when beef became more widely affordable in Korea. The addition of grated pear is a comparatively recent refinement and one of the more elegant pieces of practical food science in any home kitchen tradition, solving tenderness without the sourness an acid would introduce.

References

Related Guides

The fermented chili paste behind the spicy version has its own guide, How To Make Gochujang. For the Japanese soy-and-mirin glaze that shares half these ingredients but works as a finishing sauce rather than a marinade, see How To Make Teriyaki Sauce. And How to Butcher a Cow explains where ribeye and sirloin sit on the animal and why they behave differently.