Lim Sung-geun's Clay Pot Bomb Egg Custard

A recipe for soft, puffy egg custard that rises like bread, just like the restaurant version.

🙋 Recommended for

  • Those who want to successfully recreate restaurant-style puffed egg custard at home
  • People looking for soft, moist egg dishes
  • Anyone seeking a simple, universally loved side dish suitable for all ages

Ingredients needed 🛒2 servings

  • egg 4 pieces (about 200g)
  • water 1 cup (200g)
  • salt 1 pinch
  • hondashi 1 pinch
  • sugar 1 pinch
  • baking powder 1 pinch

Recipe 🍳

  1. In a bowl, add 1 cup (200g) of water and crack in 4 eggs.
  2. Add salt, hondashi, sugar, and baking powder, each about a pinch, and mix well.
  3. Strain the egg mixture through a sieve once or twice to remove any stringy bits and shell fragments.
  4. Pour the egg mixture into a clay pot and heat over high heat initially.
  5. When bubbles start forming around the edges and cooking begins, gently stir to prevent burning at the bottom.
  6. Reduce heat to low when the egg is about halfway cooked and becomes soft and slightly firm.
  7. Cover with another clay pot of the same size or a lid that doesn’t let steam escape.
  8. After steam starts escaping between the pots, continue cooking for 1 more minute to finish.
  1. Mix water, eggs, seasonings, and baking powder to make the egg mixture.
  2. Strain the egg mixture and pour into a clay pot; bring to a boil over high heat.
  3. Once the egg starts cooking, stir gently, then reduce heat and cover with a lid.
  4. Turn off the heat after steam begins to rise, and serve immediately.

Cooking tips 💡

  • Adding just a pinch of baking powder makes the custard puff up dramatically, especially if chilled before cooking.
  • Straining the egg mixture removes strings and results in a much smoother texture.
  • Lowering the heat when the egg is about half-cooked prevents scorching at the bottom.
  • Placing another clay pot of the same size on top traps steam and helps the custard rise evenly from the top down.
  • For extra flavor, garnish with roe, cheese, sesame oil, or red pepper flakes according to taste.

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