Use a very sharp knife and a gentle rocking motion, avoiding excessive pressure, to slice through the herbs cleanly instead of crushing them.
Bruising herbs releases bitter compounds and diminishes their fresh flavor. To prevent this, follow these steps:
Gather and Prepare: Gently gather the herbs into a loose bundle. Remove any thick stems, as these are often bitter and difficult to chop finely.
Dry the Herbs: Ensure the herbs are dry. Wet herbs tend to clump and bruise more easily. You can pat them dry with a paper towel.
Use a Sharp Knife: A dull knife requires more pressure, leading to bruising. Sharpen your knife before you begin.
Rocking Motion: Place the tip of your knife on the cutting board and use a gentle rocking motion, keeping the tip in contact with the board. Guide the knife with your other hand, keeping your fingers tucked safely away.
Avoid Chopping Repeatedly: The more you chop, the more likely you are to bruise the herbs. Aim for a consistent chop with minimal passes.
For very delicate herbs like basil, consider stacking the leaves, rolling them tightly into a cigar shape, and then thinly slicing them into a chiffonade. This minimizes bruising and maximizes flavor release.