Caramelised onions

Preparationtime
10-12 hours
Portions
6-8 people

Requirements

  • 2.3 kg onions, in rings
  • 125 g butter
  • 2 teaspoons sugar
  • 1 tbsp balsamic vinegar
  • Salt

Preparation

Place the onion rings together with the butter, sugar, balsamic vinegar and a pinch of salt in the slow-cooker. Do not put the lid on the slow-cooker! Put the Crock-Pot slow-cooker on HIGH and set the timer for 1 to 3 hours. Stir everything together and put the lid on the slow-cooker. Set the slow-cooker on position LOW for 8 to 10 hours. The onions will slowly caramelise while the liquid gradually evaporates. They will get a nice purple/brown colour. Enjoy!

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