Classic Lemon Buttercream Frosting

Classic Lemon Buttercream Frosting gets its smooth, citrusy tang from both lemon juice and lemon extract. It’s a French buttercream, which means its sweetened with a hot syrup that’s beaten into egg yolks, and then blended with butter. Easy-ish recipe (“-ish” because it requires a candy thermometer, and I know that scares some people).