Crisp matchsticks of slightly peppery kohlrabi and sweet apple are tossed with a lively lime dressing, fresh herbs, and for just a hint of heat, sliced Fresno chile.
Soak kohlrabi in a bowl of ice water until crisp, 10 minutes. Drain well.
Whisk together lime juice and zest, chile, and oil. Season with salt. Toss with kohlrabi, apple, and herbs. Season with more salt, if desired; serve.
For a quick julienne, slice apple and peeled kohlrabi on a mandolin into thin rounds, then stack rounds and cut crosswise into matchsticks.