Just like my update to my sugar cookie recipe, I feel my initial royal icing recipe post requires an update as well. When I initially posted the recipe it worked well then, but I realized it is outdated and not what I use today. Over the past two years, I've experimented with other royal icing recipe variations and made a few tweaks until I reached the formula I now use consistently each time I make cookies.
This is it—the star of the show, the main event, the most important part of our cupcakes—buttercream! As this is French buttercream, this is tres, tres serious. You will pay attention, follow along, and execute these directions! C'est Sérieux!