1. In a standing mixer fitted with a whisk attachment, beat 8 tablespoons (one stick) of room-temperature unsalted butter at medium speed until smooth, about 30 seconds; stop the mixer and add 1 tablespoon of honey and a pinch of salt. Beat the mixture at medium speed until combined, about 15 seconds, then increase the speed to high and whip until very light and fluffy, about 2 minutes, scraping down the bowl with a rubber spatula as needed.