This buttercream icing is the silkiest smooth frosting with just a hint of sweetness. Light and buttery, it just melts in your mouth. "This is a creamy light version that is not rich and heavy.

For Italian or Swiss-style buttercream, whisk molten sugar (heated ... which produce a much richer icing. If the mixture splits or curdle instead of emulsifying, stick the bowl in the fridge ...