Steamed Milk Custard, Cantonese

⭐ Worth making once just to feel the technique transfer. This is not a savoury dish and it is not really a steamed egg — it is the same physics pointed at dessert, and if you can make a good zhengdan you can make this without being told anything new.

Steamed milk custard — 燉奶 or 双皮奶 in its double-skin form — is a Cantonese dessert-house standard, especially in Shunde. Milk, sugar and egg white, steamed gently until it sets to something with the texture of the softest possible panna cotta.

🔴 Egg white only, no yolk. The yolk makes it yellow, heavy and eggy, and this is meant to be white and taste of milk.

⚠ And the same rule governs it: too much heat and it weeps and honeycombs, exactly as the savoury versions do.

Ingredients

• Simple version
• 250 ml whole milk
• 2 egg whites (about 70 g)
• 25 g caster sugar
• For double-skin milk pudding (双皮奶), same ingredients, different order — see the directions

Directions

1. The simple version
2. Warm the milk with the sugar until the sugar dissolves. ⚠ Do not boil it. Let it cool to about body temperature.
3. Beat the egg whites gently — no foam at all, you are just breaking them up.
4. Stir the milk into the whites and strain through a fine sieve into two small bowls. 🔴 Strain it twice — egg white is stringier than yolk and any thread will show in something this pale.
5. Skim every bubble from the surface.
6. Cover with foil. Steam over a bare simmer for 10 minutes, until just set with a slight wobble.
7. Serve warm or chilled.
8. The double-skin version (双皮奶)
9. Bring the milk almost to a boil, pour it into a bowl and let it stand until a skin forms on top — about 10 minutes.
10. Pierce the skin at the edge and pour the milk out from underneath, leaving the skin lying in the bottom of the bowl.
11. Mix that milk with the sugar and egg whites, strain, and pour it back into the bowl gently — pour down the side, and 🔴 the first skin will float back to the top. That is the trick, and the name.
12. Cover and steam 10–12 minutes. A second skin forms on top as it cooks. Hence double skin.

Notes

⭐ The transfer is the point. Ratio, gentle heat, strain, skim, cover — every rule from the science page applies unchanged to a dessert made of milk and egg white. That is a good demonstration that the rules are about protein, not about cuisine.

Higher-fat milk sets better. Whole milk minimum; a splash of cream in place of some of the milk makes it richer and more reliable. Skimmed milk will barely set.

Toppings: red bean paste, a spoonful of ginger juice (which will make it set faster and firmer — ginger contains a protease that curdles milk, and ginger milk curd is a related Cantonese dessert built entirely on that), lotus seeds, or nothing at all.

In the dive: Elsewhere — the dish keeps going.