Bulgogi

Korea's fire beef: paper-thin ribeye marinated in grated Korean pear, soy, sesame, garlic, and ginger until the meat's fibres dissolve: the enzymes in the pear do what hours of slow cooking cannot, producing the most tender beef on earth

Origin: Korea

From the journey of Pear.

Bulgogi (불고기; literally 'fire meat') is Korea's most internationally recognised dish and one of its most ancient, with roots in the Goguryeo kingdom (37 BCE–668 CE) where grilled meat preparations called maekjeok (貊炙) are documented. The defining characteristic of bulgogi is not the beef or the soy sauce; it is the Korean pear (bae, 배). Grated Korean pear contains active proteolytic enzymes (cysteine proteases) that literally cleave the peptide bonds holding beef muscle fibres together, breaking them down at the molecular level and producing a tenderness that no amount of slow cooking, pounding, or marination in acid can match. The Korean pear's enzymatic tenderising effect was discovered, almost certainly by accident, at some point in the medieval period, and it became the irreplaceable secret ingredient of Korean grilled beef. Without Korean pear, bulgogi can still be made, but it will never be as extraordinary. The apple (used as a substitute) or pineapple have some similar effect, but the flavour and texture of the Korean pear in this preparation is unique.

Ingredients

Meat

700 g beef ribeye or sirloin, sliced as thinly as possible (2–3mm), partially freeze first to make slicing easier

Pear marinade

0.5 medium Korean pear (bae) or Asian nashi pear, approximately 100g, grated on a fine grater

Marinade

5 tbsp soy sauce (ganjang)
2 tbsp toasted sesame oil
2 tbsp brown sugar or mirin
5 cloves garlic, minced or grated
2 cm fresh ginger, grated
3 stalks spring onions (scallions), thinly sliced
0.5 medium onion, grated

Garnish

1 tbsp toasted sesame seeds

To serve

To serve: steamed short-grain rice, crisp lettuce leaves (for wrapping), kimchi, perilla leaves (kkaennip)

Method

Grate the Korean pear on a fine grater, juice and all. Combine with the soy sauce, sesame oil, sugar, garlic, ginger, spring onions, and grated onion in a large bowl. Mix well.
Add the thinly sliced beef to the marinade. Mix thoroughly with your hands to ensure every piece is coated. Cover and refrigerate for at least 4 hours; overnight is better.
To cook: heat a cast iron grill pan, barbecue grill, or a wide heavy frying pan over very high heat until smoking hot. Cook the beef in small batches, do not crowd the pan, for 1–2 minutes until caramelised and just cooked through.
Scatter sesame seeds over the cooked beef. Serve immediately with steamed rice, lettuce leaves for wrapping, and a variety of banchan (side dishes) including kimchi.

Notes

The proteolytic enzymes in Korean pear (and in other fruits like kiwi, pineapple, and papaya) work by cleaving the peptide bonds in myosin: one of the main structural proteins in muscle fibre. Korean pear contains a cysteine protease (actinidin-like) that is particularly effective on beef at refrigerator temperature, meaning the enzyme works during cold marination rather than requiring heat. This makes Korean pear uniquely suited to a cold marinade: the meat tenderises in the refrigerator overnight without the mushiness that results from enzyme activity at room temperature. The Korean culinary discovery of this property; whether accidental or deliberate; is one of the most significant examples of empirical food science in any traditional cuisine.

The Gastrographer

Name: Bulgogi
Prep time: 20 min
Cook time: 10 min
Total time: 4 h 30 min
Yield: 4
Cuisine: Korea
Ingredients: 700 g beef ribeye or sirloin, sliced as thinly as possible (2–3mm), partially freeze first to make slicing easier; 0.5 medium Korean pear (bae) or Asian nashi pear, approximately 100g, grated on a fine grater; 5 tbsp soy sauce (ganjang); 2 tbsp toasted sesame oil; 2 tbsp brown sugar or mirin; 5 cloves garlic, minced or grated; 2 cm fresh ginger, grated; 3 stalks spring onions (scallions), thinly sliced; 0.5 medium onion, grated; 1 tbsp toasted sesame seeds; To serve: steamed short-grain rice, crisp lettuce leaves (for wrapping), kimchi, perilla leaves (kkaennip)

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Journey Point Map Key

Ingredient originTrade or transit route

Became a culinary stapleColonial / trade control