Whisk the eggs thoroughly in a clean bowl until completely uniform, with no visible streaks of egg white when lifted with chopsticks. Even, consistent whisking is the first step to a lump-free, silky smooth custard.
Pour milk into the egg mixture gradually, whisking continuously as you pour. This slow, steady mixing prevents the egg from clumping and ensures a perfectly smooth, even texture throughout.
Remove all air bubbles from the surface with a spoon, or strain the entire mixture through a fine-mesh sieve for a restaurant-level smooth finish. Any leftover bubbles will turn into unsightly honeycomb holes in the final steamed egg.
Cover the bowl tightly with plastic wrap, then poke dozens of small holes across the wrap with a needle. The holes let excess steam escape while preventing condensation droplets from dripping onto the custard and ruining its flawless top surface.
Bring a pot of water to a full rolling boil. Place the covered bowl in the steamer basket, then steam over high heat for exactly 12 minutes. Turn off the heat and let the egg rest, covered, for 2 extra minutes before removing — this gradual cool-down prevents the custard from collapsing or developing cracks.
Top the warm steamed egg with sliced banana and chopped almonds right before serving. The natural sweetness from ripe banana delivers all the flavor you need without any added sugar.