Chocolate ice lolly with a crisp shell

A creamy chocolate lolly in a thin chocolate shell that cracks when you bite it.

This is the home answer to a shop-bought bar: a creamy centre and a thin shell that cracks. The centre is a classic cream base with cocoa and melted chocolate — the fat and solids are there so the lolly is not icy when nothing stirs it. The shell is nothing but melted chocolate; the whole trick is that the lolly must come out of the freezer rock hard, so the chocolate sets in two seconds and has no time to melt it.

Type: Classic cream ice cream · Servings: 10 · Difficulty: Moderate

Equipment

Ingredients

  • 450 g whole milk 3.5 %
  • 180 g whipping cream 33 %
  • 105 g granulated sugar (sucrose)
  • 30 g dextrose (glucose powder)
  • 20 g skimmed milk powder
  • 35 g cocoa powder (10–12 % fat) (unsweetened; Dutch-process (alkalised) is milder)
  • 55 g dark chocolate 70 % (chopped)
  • 1 g salt (a pinch)
  • 3 g vanilla extract
  • 120 g dark chocolate 70 % (for topping or folding in at the end, finely chopped)

Making the mix

  1. In a saucepan, mix the sugar, dextrose, milk powder, cocoa and salt while dry — otherwise the cocoa forms lumps.
  2. Gradually pour in the milk and whisk until smooth. Heat to just below boiling (around 85 °C), stirring constantly, and hold for two minutes.
  3. Take off the heat, add the chopped chocolate and stir until it melts. Then stir in the cold cream and the vanilla and blitz the mix briefly with a stick blender.
  4. Leave to cool, then age in the fridge for at least four hours, ideally overnight.

Method — No-machine method

  1. Fill the moulds about four fifths full — the mix expands slightly as it freezes and would otherwise seep out around the lid.
  2. If your mould has no lid with stick holders, put it in the freezer first and insert the sticks after 60–90 minutes, when the mix is firm at the sides and slushy in the middle. At that point the stick stands upright and will not float.
  3. Once frozen, unmould the lollies and lay them on a chilled tray lined with baking paper. Return the tray and the lollies to the freezer for 20 minutes so they are properly frozen through.
  4. Freeze for at least 6 hours, ideally overnight. The lolly must be hard all the way through.
  5. Dip the mould up to its rim in lukewarm (not hot) water for five to ten seconds and pull the lolly out slowly and straight by the stick. If it resists, dip it for a few more seconds — pulling sideways tears the stick out.

Do the shell last: melt the chocolate over steam or in the microwave in 15-second bursts, let it cool to lukewarm (about 32–35 °C) and pour it into a tall, narrow glass. Take the lollies out of the freezer one at a time, dip for two seconds, let the excess drip off and set them back on the cold tray — the shell sets almost instantly. Return the lollies to the freezer for 10 minutes.

Total time: 10 h 55 min

Method — Compressor ice cream maker

  1. Switch the ice cream maker on 5–10 minutes ahead so the bowl can pre-chill.
  2. Pour in the chilled mix and churn for 20–30 minutes — only to the consistency of thick soft-serve, not hard.
  3. Transfer the soft ice cream to a piping bag and pipe it into the moulds. Tap the mould on the worktop a few times to release air bubbles and level the surface.
  4. Push in the sticks (the mix already holds them) and leave to harden in the freezer for 3 hours. Dip the mould up to its rim in lukewarm (not hot) water for five to ten seconds and pull the lolly out slowly and straight by the stick. If it resists, dip it for a few more seconds — pulling sideways tears the stick out.

This gives the smoothest lolly you can make at home: the machine creates many tiny crystals at once and the mould only hardens them. Pipe the ice cream straight away — after a few minutes on the worktop it stiffens and will not fill the mould without holes.

Total time: 8 h 20 min

Method — Freezer-bowl ice cream maker

  1. Fit the frozen bowl (at least 24 hours in the freezer) just before use and switch the machine on.
  2. Pour in the chilled mix and churn for 20–30 minutes — only to the consistency of thick soft-serve, not hard.
  3. Transfer the soft ice cream to a piping bag and pipe it into the moulds. Tap the mould on the worktop a few times to release air bubbles and level the surface.
  4. Push in the sticks (the mix already holds them) and leave to harden in the freezer for 4 hours. Dip the mould up to its rim in lukewarm (not hot) water for five to ten seconds and pull the lolly out slowly and straight by the stick. If it resists, dip it for a few more seconds — pulling sideways tears the stick out.

This gives the smoothest lolly you can make at home: the machine creates many tiny crystals at once and the mould only hardens them. Pipe the ice cream straight away — after a few minutes on the worktop it stiffens and will not fill the mould without holes.

Total time: 8 h 50 min

Stages

Preparation
15 min
Cooking
10 min
Cooling
30 min
Ageing in the fridge
4 h
Freezing
6 h
Total time
10 h 55 min

Plan: what to do and when

The whole recipe takes 10 h 55 min, of which 45 min is hands-on — the rest is waiting you can spend elsewhere.

The making itself fits into a single day — start at least 10 h 55 min before serving.

  • Prepare the mix (weigh and stir the ingredients) — 15 min
  • Cook the mix — 10 min
  • Cool the mix down — 30 min
  • Let the mix age in the fridge — 4 h
  • Put the mix in the freezer — 6 h

Serving and storage

Let the lolly stand for a minute — the shell stays hard while the centre softens, so it breaks cleanly. You can scatter chopped nuts or freeze-dried raspberries over the shell while it is still wet.

Wrap the coated lollies individually in baking paper and keep them in a closed container at the back of the freezer, ideally for no more than two weeks. The shell dulls with time and may turn pale — that is only fat at the surface and does not change the taste.

Tips

  • A spoonful of coconut fat or a flavourless oil in the melted chocolate thins the shell, so it is finer and shatters less when you bite. Without it the shell is thicker and harder.
  • The coating must be lukewarm. Hot chocolate melts the lolly and washes off; cold chocolate drags in lumps.
  • Keep any lollies you are not dipping yet in the freezer. Even a minute on the worktop is enough for the shell to stop sticking.
  • A teaspoon of instant coffee in the mix deepens the chocolate flavour without making the lolly taste of coffee.
  • Keep the moulds level in the freezer and not in the door. A tilted mould gives a crooked lolly, and in the door the temperature swings every time you open it, so the ice grows coarse.

Why it works

With nothing stirring, the formulation decides the texture. Milk fat from the cream and cocoa butter from the chocolate interrupt the ice network and act as a lubricant on the tongue, cocoa adds fibre and starch that bind water, and milk powder raises the milk solids. Total solids end up around 42 %, the upper half of the cream ice cream range — exactly what a lolly needs, since it lacks the fine crystal structure a machine would give it. The shell works on the same principle as an industrial coating: cocoa butter sets on contact with the deep-frozen surface faster than it can pass its heat inwards.

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Sources