In a large bowl, whisk the dressing ingredients together. Set aside.
Peel the kohlrabi and the carrot. Ensure that you have removed all the tough outer bits of the kohlrabi.
Slice the kohlrabi and carrot using a mandoline, set on the fine julienne setting, or thinly slice by hand. Add the matchsticks to the bowl with the dressing along with the coriander, mint and parsley.
Toss all the ingredients together until everything is coated evenly. Season to taste.