Try this homemade Williams Sonoma Vanilla Buttercream Frosting recipe the whole family will love. Made with sugar, unsalted butter, milk and vanilla. Ea…
This Williams Sonoma Vanilla Buttercream Frosting relies on simple, everyday ingredients such as confectioners' sugar, unsalted butter, softened, milk (plus more, if needed) and vanilla extract. It comes together quickly and makes 4 servings, at about 789 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026