• Cut the cabbage leaves into 4 cm thick pieces. Peel the carrot and slice it as well.
  
• Place the cabbage and carrot pieces in a bowl and add the fleur de sel. Mix well until the vegetables soften a little.
  

Preparing the sauce

• In a saucepan over low heat, whisk together the vinegar, soy sauce, mirin and sesame oil. As soon as it simmers, remove from heat.
  
• Add this sauce to your vegetables, mix well and then, once covered with cling film, weight down with a weight.
  
• Let macerate for 1 hour in the fridge, it's ready! They can be eaten at your convenience, cold or at room temperature.