To start, you’ll need an electric mixer of some sort—either a handheld mixer or a stand mixer fitted with the whisk attachment will do. Beat the meringue powder and 5 Tbsp. water until the mixture ...

There’s something weirdly satisfying about watching royal icing flow across a cookie like shiny sugar lava — right before it dries into a flawless, bakery-level finish. This simple royal icing recipe ...