Gyeran Jjim (Korean Steamed Egg Custard)

Soft, savoury and served hot, gyeran jjim is Korea’s steamed egg custard, often enjoyed as a gentle side dish or appetiser alongside rice and banchan. The eggs are loosened with warm fish stock and seasoned lightly with soy sauce and salt, giving the custard a delicate umami depth without making it heavy. Gentle steaming is key: it should rise slightly and set with a tender wobble rather than become firm or spongy. Spring onion brings freshness, while toasted sesame oil and roasted sesame seeds add a nutty finish just before serving.
Cuisine style Korean home cooking
Flavor profile Savoury • Umami-rich • Light sesame finish
Techniques Gentle steaming • Straining
Key equipment Saucepan • Heatproof bowl • Sieve
Cooking style Minimal cleanup
Time commitment Under 30 minutes

Why this recipe works

  • Soft, custardy texture: Low, steady steam sets the eggs gently, giving the custard a tender wobble rather than a firm or spongy finish.
  • Quiet umami depth: Fish stock and light soy season the eggs from within, while sesame oil adds a fragrant finish without weighing the custard down.
  • Fast to prepare: With a short whisking and steaming time, it delivers a warm, savoury side dish in under 30 minutes.

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Ingredient notes

  • Use a well-seasoned stock: Fish stock gives the custard its characteristic savoury depth; chicken stock makes a milder version with less briny flavour.
  • Strain for smoothness: Passing the egg mixture through a sieve removes thicker strands of egg white and helps the custard set more evenly.
  • Season with restraint: Light soy sauce and stock both add salt, so taste and adjust gently rather than making the egg mixture too salty before steaming.

Texture tips

  • Keep the steam gentle: A low simmer gives a finer, silkier set; aggressive boiling can make the custard bubble and form holes.
  • Stop at a slight wobble: Remove the custard once it is puffed and just set in the centre. Carryover heat will finish it without making it rubbery.

Authenticity notes

  • A Korean home-style side: Gyeran jjim is commonly served hot as a soft savoury side dish rather than as a sweet custard.
  • How it is served: It pairs naturally with steamed rice, kimchi and other banchan, or alongside grilled meats and stews.

Make-ahead tips

  • Best eaten fresh: The custard is at its lightest and most delicate straight after steaming, while still hot.
  • Reheat gently: If refrigerated, reheat by steaming over a low simmer until piping hot; high microwave heat can make the eggs rubbery.

Equipment you'll need

Ingredients
Instructions
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  1. Bring a saucepan of water to a gentle simmer and set a heatproof bowl on top so it sits securely above the water without touching it. Keep the heat low so the steam is steady, not aggressive.
  2. Thinly slice the spring onions, then set a small handful aside for finishing. In a bowl, whisk the eggs with the warm fish stock, light soy sauce and fine sea salt until smooth, without whipping in lots of air.
  3. Strain the egg mixture through a sieve into the heatproof bowl, then stir in most of the spring onion. Cover the bowl with a lid if it fits, or with foil, leaving a small gap for steam to escape.
  4. Steam gently for 10 to 12 minutes, checking at 10 minutes. It is ready when puffed and just set with a slight wobble in the centre; avoid overcooking or it will turn spongy.
  5. Remove from the heat and drizzle over the toasted sesame oil. Scatter over the reserved spring onion and the roasted sesame seeds, then serve straight away while hot.

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Recipe notes

Tips

  • Keep the water at a gentle simmer and the heat low; vigorous boiling makes the custard bubble and set with holes.
  • If you are serving anyone who is pregnant, elderly, or immunocompromised, steam the custard until fully set and piping hot throughout.

Substitutions

  • Replace fish stock with chicken stock for a milder, less briny custard.
  • Replace light soy sauce with a slightly smaller amount of soy sauce, then add fine sea salt to taste.

Storage

  • Refrigerate up to 2 days
  • Cool, cover and refrigerate. Reheat gently by steaming over a low simmer until piping hot; avoid microwaving on high, which can make it rubbery.

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Gyeran Jjim (Korean Steamed Egg Custard)
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Recipe overview

  • Servings: 2 servings
  • Total time: 25min (10min active)
  • Difficulty: Easy
  • Cuisine: Korean
  • Allergens:
    Eggs Fish Sesame Soybeans
Beginner friendly Kid friendly

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