Peel the kohlrabi with a knife ensuring all the tough outer layers are removed, then cut into large chunks.
Coarsely grate the kohlrabi and carrots. I used a food processor, which made the job a lot easier, although the gratings were finer than I'd have ideally had them.
Place in a large bowl and stir in the lime juice.
Snip in the chives, add the mayonnaise, mustard and raisins and stir until everything is just mixed.
Notes
Will keep in a covered container in the fridge for up to 5 days.
Please note: calories and other nutritional information are per serving. They're approximate and will depend on serving size and exact ingredients used.