Mix the egg yolk with the formula/breast milk. Beat with a fork for about 1 to 2 mins.
Steam the egg mixture over medium heat for about 5 minutes.
Let it cool and served.
Variations: you can add in 1 tsp of sugar and a few drops of vanilla essence and baked it for 15 to 20 minutes with a preheated oven (180 degree celsius) and make it into vanilla custard. Or add in 1 tsp of cocoa powder and make it into Chocolate Pots.