Julienning is a method of food preparation in which the food item is cut into long thin strips. Common items to be julienned are carrots for carrots Julienne, potatoes for french fries, or celery for Céléris Remoulade.
With a sharp knife the raw vegetable is sliced on four sides to create a thick rectangular stick, then cut lengthwise into approximately 3 mm (1/8 inch) slices. Stacking these slices and again cutting lengthwise into strips creates thin uniform square sticks. Julienne usually applies to vegetables prepared in this way but it can also be applied to the preparation of meat or fish, especially in stir fry techniques.
Once julienned, turning the subject 90 degrees and dicing finely will produce brunoise.