• Lucas
• 01 May, 2026
• • Swiss Meringue Buttercream
  • Baking Troubleshooting
  • White Chocolate
  • Cake Frosting
  • Emulsions
  • Pastry Techniques

Why Did My White Chocolate Make My Buttercream Curdle?

There are few moments in baking more triumphant than seeing a Swiss Meringue Buttercream (SMBC) come together. That glossy, ethereal cloud of frosting is a testament to your patience. You taste it—perfect. Now, for the final touch: a cascade of beautifully melted white chocolate. You pour it in, the paddle turns, and then… horror. In seconds, your silky frosting transforms into a grainy, weeping, cottage-cheese-like mess.