Why Did My Swiss Meringue Buttercream Curdle or Turn Soupy
There’s a moment of pure panic that every baker making Swiss meringue buttercream for the first time experiences. You’ve followed the instructions perfectly. You gently heated your egg whites and sugar, whipped them into a glorious, glossy meringue, and started adding the butter. Then, disaster strikes. Your beautiful fluff collapses into a greasy, soupy puddle, or it breaks into a lumpy, curdled mess that looks like cottage cheese.