Bulgogi (Marinated Grilled Beef)
Thinly sliced beef marinated in a sweet soy sauce and quickly seared — Korea's most beloved beef dish, great over rice or in lettuce wraps.
Ingredients
- Beef (thin-sliced sirloin/chuck)400 g
- Onion0.5
- Green onion1 stalk
- Carrot · optional0.25
- Shiitake mushrooms · optional2
- Marinade
- Soy sauce4 tbsp
- Sugar · 1.5–2.5, to taste2 tbsp
- Pear juice (or grated pear)3 tbsp
- Minced garlic1 tbsp
- Sesame oil1 tbsp
- Black pepper · a little
Steps
Mix all the marinade ingredients. The pear juice tenderizes the beef.
- ⏲ 30 min
Pat the beef dry, toss with the marinade, and rest at least 30 minutes.
Julienne the onion, green onion, carrot, and shiitake.
- ⏲ 6 min
In a hot pan, stir-fry the marinated beef and vegetables over high heat, in two batches.
When the liquid reduces and the beef is cooked, turn off the heat and sprinkle sesame.
Variations
- Here something in the marinade really does cut protein. Neither the yoghurt in kebab nor the four-day vinegar of sauerbraten tenderises anything; bulgogi's pear does.
- Ttukbaegi bulgogi: Add plenty of broth and glass noodles for a soupy hot-pot version.
- Pork bulgogi: Swap pork for beef and use a spicy gochujang marinade.
- Mushroom-heavy: Add shiitake, oyster, and enoki for a fuller dish.
- Bulgogi rice bowl: Pile over rice and top with a fried egg.
More detail and the reasons why (2)
- Soy sauce is doing the salt's job. That is why the sauce on bulgogi works in thirty minutes (what marinades do). What gets inside meat is salt. It is a small ion, it diffuses between the fibres, and once in it loosens the protein structure so the meat holds on to its own water. The pear does real work too — but that work stops one to three millimetres in.
- The enzymes are real, and so is the clock. Pear, kiwi and pineapple genuinely cut protein, with a catch: they do not stop. Thirty minutes is enough; a few hours turns the surface to mush, and unevenly, so parts collapse while parts stay intact. Galbijjim uses the same mechanism the same way — a small quantity and a short time. Canned pineapple is heat-treated and its enzymes are dead, so it does nothing at all.
Tips
- Pear (or kiwi/pineapple) enzymes tenderize the beef — but don’t over-marinate; 30–60 min is ideal.
- Sear fast over high heat so the beef stays tender.
- Swap sugar for plum syrup or oligosaccharide for shine and gentle sweetness.
- Pat the beef dry to avoid any off-smell.
More detail and the reasons why (5)
- Thirty to sixty minutes is the enzyme's window, not caution. Past it the meat does not get softer, it goes woolly from the surface inward. And the salt in the soy sauce is already in by then, so there is nothing left for a longer marinade to buy.
- How thin it is decides the high heat. As in sukiyaki, the thickness of the beef decides the dish: 1.5-2mm. Past 3mm, 30 seconds will not cook it, and cooking it long enough makes it tough (cooking meat). Thin karubi for yakiniku gets no resting time at all. Bulgogi-cut beef is that thickness — a minute and it is done, and the minute after that makes it tougher rather than more cooked.
- A cool or crowded pan boils it instead of searing it. The marinade is wet, so on anything short of a properly hot surface the beef gives up water and goes grey in it. Beef stroganoff is browned in two batches for exactly this reason (browning). Four hundred grams is two batches.
- The sugar burns before the beef is done. A sweet marinade over high heat scorches before the inside is cooked. What makes high heat safe here is that a 2mm slice has no inside to worry about — put the same marinade on a thick cut and the warning applies in full.
- Patting it dry is about not thinning the marinade. Whatever water and juice sit on the surface go straight into the sauce, and from there into the pan. This is not the usual pat-dry rule, which is about the surface at the moment it meets the pan, and bulgogi goes into the pan still coated in its wet marinade. At that stage the water is handled by high heat and two batches.
The basics behind this dish
- Salt: When You Add It Matters More Than How MuchThe same amount of salt either draws water out or seasons all the way through, depending on when it goes in. Osmosis, seasoning in layers, and why salt types are not interchangeable by volume.
- Cooking Meat: Temperature, Resting, and Cutting Against the GrainDoneness is a core temperature, not a number of minutes. What resting actually does, how to handle a thick cut, and why the direction you slice changes the texture.
- Freezing and Thawing Without Wrecking the TextureTexture damage from freezing comes down to ice crystal size. Freeze fast, exclude air, thaw in the fridge, and most of the problem disappears.
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