The Blade's Language
Knife cuts aren't decorative. Uniform cuts mean uniform cooking times. Here are the 7 cuts every serious cook must master, with exact dimensions and why they matter.
The Blade's Language
In a professional kitchen, a mis-cut isn't a style choice — it's a timing bomb. If your brunoise cubes are inconsistent, some will be raw while others are overcooked. The French brigade system codified these cuts for one reason: repeatability.
The Hierarchy of Cuts
All French knife cuts follow a logical hierarchy: strips first, then cubes. Master the strips, and the cubes follow automatically.
| Cut | Dimensions | Primary Use |
|---|---|---|
| Baton | ½" × ½" × 2½" | Crudités, rustic vegetable dishes |
| Batonnet | ¼" × ¼" × 2–2½" | French fries, stir-fry vegetables |
| Julienne | ⅛" × ⅛" × 1–2" | Salads, garnish, stir-fry |
| Fine julienne | 1/16" × 1/16" × 1–2" | Delicate garnish, Asian dishes |
| Large dice | ¾" cube | Soups, stews, roasted vegetables |
| Medium dice | ½" cube | Sautés, salads |
| Small dice | ¼" cube | Sauces, fillings |
| Brunoise | ⅛" cube | Aromatic bases, garnish, fine sauces |
| Fine brunoise | 1/16" cube | Delicate sauces, caviar service |
| Chiffonade | ⅛" wide ribbons | Herbs, leafy greens |
| Mince | <1/16", irregular | Garlic, ginger, herbs |
The Julienne → Brunoise Pipeline
You cannot brunoise without julienning first. The sequence is:
- Square off the vegetable — trim to a rectangular block, no curves
- Slice into ⅛" planks
- Stack planks, cut into ⅛" matchsticks (julienne)
- Gather matchsticks, cut crosswise at ⅛" intervals (brunoise)
Any deviation from step 1 produces irregular cubes. This is why squaring off is not optional.
The Chiffonade
Stack leaves face-up on top of each other. Roll tightly into a cigar. Hold the cigar firmly and slice crosswise — the knife never rocks, it pulls. Thinner slices = finer ribbons. Release gently and the ribbons uncurl. Works for basil, mint, sage, spinach, sorrel.
The Claw Grip: Non-Negotiable
Curl your fingertips under so the flat of the blade rides against your knuckles. Your knuckles guide each cut, your fingertips stay safely behind. Every cut from julienne to chiffonade uses this grip. Without it, your speed is permanently capped by your fear of the blade.
Why Uniform Cuts Matter More Than Fast Cuts
A vegetable brunoise with 50% variance in cube size will have 50% of the cubes either raw or overcooked when the median cube is done. Restaurants don't cook to the slowest cube — they cook to the recipe time. Speed can always be improved with practice. Consistency cannot be "practiced into" without first internalizing the geometry.
Fred's Test
"If I can't tell the difference between your brunoise and your fine brunoise by sight, you've done it wrong. If your chiffonade looks frayed, your knife is dull. A dull knife is a dangerous knife — it requires force, and force causes slippage. Sharpen your knives daily." — Fred