Making hot chocolate

Two different drinks share the name. Which one you are making determines everything about how to make it.

beginner

Drinking chocolate made from real chocolate contains cocoa butter, so it is rich, viscous and coats the mouth. Cocoa-powder drinks are made from cocoa with most of the butter pressed out, so they are thinner and need more sugar.

Neither is a worse version of the other, but they are made differently. Chocolate-based drinks want the milk warm rather than boiling and benefit from being emulsified. Powder-based drinks want the powder slaked into a paste with a little liquid first, because cocoa powder will not hydrate if it is dropped into a full mug and will float in lumps instead.

What it is for
To produce a hot chocolate drink of a chosen richness, from either chocolate or cocoa powder.
Working temperature
6075°C — Above about 80°C milk proteins denature enough to change the flavour noticeably, and boiling produces a skin. Serving temperature is a matter of preference; heating temperature is not.

Ratios

ForRatioNote
Rich European style1:3 chocolate to whole milkRoughly 60–70g chocolate to 200ml milk. Thick and intense; a small cup is the serving.
Everyday drinking chocolate1:6 chocolate to whole milkRoughly 35g chocolate to 200ml milk. A mug-sized drink.
Cocoa-powder drink1:20 chocolate to whole milkRoughly 10g cocoa powder to 200ml milk, plus sugar to taste. Thinner by nature — the cocoa butter is not there.

Method

  1. 1. For chocolate-based: chop finely. For powder-based: mix the powder and sugar with two or three tablespoons of the cold liquid to a smooth paste first.

    Where people go wrong: Tipping cocoa powder into hot milk. It does not wet properly and forms lumps that will not disperse.

  2. 2. Heat the remaining milk to around 70°C — hot but well short of boiling.

    Where people go wrong: Boiling the milk, which produces a skin and a cooked-milk flavour that dominates the chocolate.

  3. 3. Add the chocolate or the slaked paste, and whisk until fully dispersed and slightly thickened.

When it goes wrong

SymptomCauseFix
Lumps of undissolved powderCocoa powder added directly to hot liquid.Slake it to a paste with cold liquid first. A lumpy drink can be rescued with a stick blender.
Thin and watery despite using good chocolateToo much liquid for the chocolate, or a low-percentage chocolate contributing little solid.Increase the chocolate rather than reducing the milk — the ratio is the variable.
Separates or looks oily on standingThe emulsion has broken, usually from overheating.Whisk vigorously off the heat. Keeping the temperature below 75°C prevents it.

Thickened chocolate a la taza

The very thick Spanish and Latin American style is thickened with starch, traditionally cornflour, not by using more chocolate. Attempting to reproduce it by increasing the chocolate alone produces something intense and still pourable rather than the spoon-standing texture it is known for.

Related

Works with

  • Drinking chocolateThe two drinks that share the name behave differently, and the technique has to know which one is being made.
  • Instant cocoa mixWorkable, and the limiting factor is the mix rather than the method — if sugar is the first ingredient, no technique produces a rich drink.
  • Dark chocolateTwo different drinks share the name. Which one you are making determines everything about how to make it.
  • Milk chocolateTwo different drinks share the name. Which one you are making determines everything about how to make it.
  • Hot chocolate bombA pre-portioned shell containing the chocolate and any additions, which dissolves when hot milk is poured over it.

Apply this with a tool

  • Hot chocolate calculatorScales the chocolate or cocoa dose to a volume, and keeps the two drinks that share the name apart.

Covered in

History and culture

  • Mexican drinking chocolateThe technique — whisked to a foam with a molinillo — is a different procedure from the European hot chocolate the preparation record opens with.
  • Churros con chocolateThe Spanish preparation is thickened and served far more concentrated than the technique's default.
  • Italian hot chocolateThe technique, and where the Italian thickened version departs from the default method.

Sources

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