How to Crystallize Pineapple

Written by a.j. andrews | 13/05/2017
How to Crystallize Pineapple
A pineapple can last for months once it's been crystallised. (Getty Thinkstock)

For a sweet, natural sweet treat, try making your own crystallised pineapple. Crystallising fruit is a process that's been around for centuries, making the perishable fruit harvest edible throughout the winter. Home cooks made crystallised fruit often around the turn of the 20th Century; like most old-fashioned recipes, it's a time consuming process that can be sped up a bit with modern appliances. Still, true crystallised pineapple will take several days to make.

Things you need

  • 1 pineapple

  • 900 grams (2 lbs) sugar

  • 2 cooking pots

  • Cooking thermometer

  • Colander

  • Drying rack

  • Baking tray

  • Food dehydrator (optional)

Remove the top and bottom of the pineapple. Skin and core the fruit, then slice it into 1 to 1.5 cm (1/2-inch) thick slices.

Combine 2 cups of water and 2 cups of sugar in a cooking pot.

Heat the sugar and water, stirring occasionally, until it reaches a boil and reads 112C (235F) on a candy thermometer. Add the pineapple to the pot and allow it to simmer for 1 hour.

Allow the syrup to cool, then place the pot in the refrigerator overnight.

Drain the pineapple. In the cooking pot, bring another 2 cups of water and 2 cups of sugar to a boil. Add the pineapple to the pot, simmer for 1 hour, cool and refrigerate overnight again.

Repeat the draining, mixing sugar water, boiling, cooling and refrigerating overnight a third time.

Drain the pineapple a fourth time. Lay the slices on a cooling rack on top of a foil-lined baking tray. Place the pineapple in a 93C/200F oven to dry for at least 4 hours. Alternatively, dry the pineapple in an electric dehydrator according to the manufacturer's instructions.

Tips

  • For a quicker version, use canned pineapple and dry the slices after step 3.

Warnings

  • The boiling sugar syrup gets extremely hot. Protect your skin when working with it and do not allow it to overheat.

Things you need

  • 1 pineapple
  • 900 grams (2 lbs) sugar
  • 2 cooking pots
  • Cooking thermometer
  • Colander
  • Drying rack
  • Baking tray
  • Food dehydrator (optional)

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