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 ...

1 1/2 c. For the cookies: In the bowl of a stand mixer fitted with the paddle attachment, combine the butter, granulated sugar, and orange zest. Beat on medium speed until smooth, then add the eggs ...