How to Chiffonade Basil and Other Leafy Herbs

To chiffonade, stack leaves, roll them tightly into a cigar, and slice across the roll into thin ribbons, usually 1 to 2 mm (about 1/16 in) wide. It is the fastest way to cut large herbs and greens evenly, with minimal bruising.

Why rolling works

A loose pile of basil leaves slides around under the knife, so you end up chopping the same spot again and again, crushing cells each time. Rolling the leaves into a tight cylinder holds them still and lets you cut each part of every leaf exactly once with a single clean stroke. One cut equals less damage.

Less damage matters because leaves are full of tiny compartments. When cells rupture, an enzyme called polyphenol oxidase meets phenolic compounds and oxygen, and the cut edges turn brown or black. This is enzymatic browning, the same reaction that browns a cut apple. Crushing also releases the herb's volatile aroma oils onto your board instead of into your food.

A sharp blade slices through cells; a dull blade tears and bruises them. With delicate basil, the difference shows up within minutes as dark, wet edges.

Steps

1. Wash the leaves and dry them completely. Spin in a salad spinner or pat with a towel. Water on the leaves speeds browning and makes the roll slippery.
2. Remove tough stems and thick centre ribs. For basil, just pinch off the stems. For kale, chard or collards, cut along both sides of the thick rib and discard it or save it for soup.
3. Stack 5 to 10 leaves of similar size, largest on the bottom. Line them up the same way, tips pointing the same direction, so the roll is even.
4. Roll the stack tightly lengthwise into a cigar. Start from one long side and roll firmly. With large greens, roll a few leaves at a time to keep the cylinder thin enough to hold.
5. Slice across the roll into 1 to 2 mm ribbons. Use a claw grip with your guiding hand and move the knife forward and down in one smooth slicing motion. Do not saw back and forth.
6. Fluff the ribbons apart and use them right away. Toss gently with your fingertips to separate the strands, then scatter over the dish.

Widths for different jobs

For sturdy greens like kale, a slightly wider cut and a quick massage with salt and lemon juice breaks down tough fibres and makes them tender raw.

Keeping basil green

Basil is the herb most likely to turn dark. Basil is also cold-sensitive: leaves stored below about 10 °C / 50 °F can blacken from chilling injury, so keep fresh basil at room temperature with the stems in water, like cut flowers.

To keep chiffonade green:

• Cut at the last moment, ideally just before plating.
• Use the sharpest knife you have.
• Toss the ribbons with a few drops of olive oil; a thin coat of oil slows oxygen reaching the cut edges.
• If you must hold it, cover tightly and keep it out of the fridge for the short term.

For pesto or green oils where colour matters more, blanch the leaves for 5 to 10 seconds and shock in ice water. Blanching inactivates the browning enzyme, at the cost of a little fresh aroma.

Common mistakes and fixes

• Ragged, crushed ribbons: the knife is dull, or you are pressing straight down. Sharpen the knife and slice forward.
• Roll unravels: the stack is too thick or the leaves are wet. Roll fewer leaves, dry them well, and keep a firm grip.
• Uneven strips: leaves of very different sizes were stacked together. Sort by size first.
• Black basil on the plate: you cut it too early. Cut last, oil lightly, and avoid refrigerating cut basil.
• Stringy kale: you left the rib in. Strip the centre rib before rolling.