Techniques
Knife Skills
Skill
Beginner
3 min

How to make medium dice (parmentier)

Trim into a rectangle, slice into thick slabs, cut into batonnets, then dice into medium cubes.

Parmentier (medium dice) follows the same principle as smaller dice cuts but at a larger size. The transcript demonstrates trimming carrots into manageable lengths, squaring to a rectangle, slicing lengthwise into thick slabs, cutting into batonnets, then dicing.

The short version

  • Use the same workflow at larger dimensions: square → slabs → sticks → dice

What you need

  • chef's knife
  • cutting board

How to do it

  1. 1

    Trim the vegetable (example: carrot) into about 2 in / 5 cm portions.

    Shorter lengths are easier to square and slice evenly.

    Watch this step
  2. 2

    Square off the sides to form a rectangle.

    Flat sides improve stability.

    Watch this step
  3. 3

    Slice the rectangle lengthwise into thick slabs (about 1/2 in / 1.2 cm).

    Keep the slab thickness consistent.

    Watch this step
  4. 4

    Cut the slabs into batonnets (sticks).

    Watch this step
  5. 5

    Dice the batonnets into medium cubes (parmentier).

    Watch this step

What goes wrong

Trying to dice a round carrot without squaring it first

Square to a rectangle before making slabs.

Why it works

Portioning and squaring create stable geometry so thicker cuts stay even and safe to execute.

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