Chocolate frosting

Three quite different things share the name, and choosing between them is mostly about how it has to behave once piped.

beginner

Chocolate frosting covers at least three distinct preparations. Buttercream is butter and sugar with melted chocolate or cocoa beaten in — stable, sweet, and pipes reliably. Whipped ganache is a ganache cooled and then aerated — less sweet, more chocolatey, and softer. A simple glacé icing is sugar and cocoa with liquid, which sets hard and is what most supermarket cakes carry.

The choice is practical. Buttercream holds a piped shape at room temperature; whipped ganache tastes far more of chocolate and softens sooner; glacé icing is cheap and sets to a shell.

What it is for
To produce a spreadable or pipeable chocolate covering with the right stability for the job.
Working temperature
1824°C — Both are room-temperature preparations. Chocolate added to buttercream must be cool but still fluid — around 30°C.

Ratios

ForRatioNote
Chocolate buttercream1:2 chocolate to butter and icing sugarRoughly 100g melted chocolate to 200g of butter-and-sugar base. Stable at room temperature.
Whipped ganache1:1 chocolate to double creamCool fully before whipping. Far more chocolate flavour than buttercream and considerably less stable.

Method

  1. 1. For buttercream, beat softened butter with icing sugar until pale, then beat in cooled melted chocolate.

    Where people go wrong: Adding warm chocolate, which melts the butter and gives a soupy result that will not recover.

  2. 2. For whipped ganache, make a soft ganache, cool it to room temperature, then whip until it lightens and holds a peak.

    Where people go wrong: Over-whipping, which splits the emulsion and turns it grainy. It cannot be un-whipped.

When it goes wrong

SymptomCauseFix
Buttercream splits or curdlesThe chocolate was too warm, or the butter too cold, so the two would not combine.Warm the bowl very slightly and beat again. Splitting from temperature mismatch usually recovers.
Whipped ganache turns grainyOver-whipping has broken the emulsion.Not recoverable as a whipped ganache. Melt it gently back down and use it as a sauce.

Related

Works with

  • Dark chocolateThree quite different things share the name, and choosing between them is mostly about how it has to behave once piped.
  • Milk chocolateThree quite different things share the name, and choosing between them is mostly about how it has to behave once piped.
  • Cocoa powderThree quite different things share the name, and choosing between them is mostly about how it has to behave once piped.

Covered in

Sources

  • ChocolateHQ editorial synthesisChocolateHQ(citation identity confirmed; passage not re-read)