I have been trying to make the royal icing for those little cupcakes. You can either make it with meringue powder or fresh eggs white. I chose to use the pasteurized eggs white to avoid food poisoning. Pasteurized eggs are not so common in Malaysia, but you can get those eggs in Jusco or Cold storage.
The Royal icing is really light & suitable for adults who do not like greasy butter cream icing. It has a glossy looks which is quite appealing. The end result is very satisfying. Simple.