Savory Seafood Custard

This savory custard borrows from the Japanese chawanmushi tradition, a delicate steamed egg custard threaded through with seafood and aromatics. Whole clams sit at the bottom of each ramekin, then get blanketed with a silky egg-white custard seasoned with fish sauce, fresh ginger, and a sprinkle of scallions.

The water-bath bake is what gives this its signature jiggle. Hot water surrounding the custard cups insulates them from direct oven heat, so the eggs set gently into a barely-firm texture rather than scrambling or weeping. When done, the surface should ripple like jelly when you nudge the pan.

Serve straight from the ramekins as a starter or a light lunch with rice and a small bowl of pickled vegetables.

Pro Tips

• Use room-temperature egg whites and clam juice. Cold liquids steam unevenly in the water bath and cause the custard to weep.
• Strain the egg mixture through a fine sieve before pouring into cups. This catches stringy chalazae and gives the smoothest possible texture.
• The water in the baking pan must be boiling when you start. Adding cold water means the custards take much longer to set and risk overcooking.
• Cover the pan loosely with foil or parchment to prevent the custard tops from browning or developing a skin.
• Test for doneness with the tap test: a gentle wobble in the center is right. A sloshing wave means it needs more time.

Variations

• Add a few cooked shrimp, scallops, or crab pieces alongside the clam for a more luxurious version.
• Swap fish sauce for soy sauce or a mix of both for a different umami profile.
• Garnish with a few drops of sesame oil and a small mound of microgreens for a more refined plate.