Using a 1 ½ to 2-inch piece of peeled carrot, cut off the four sides to form a rectangle. Trim the ends to make the piece even. The leftover pieces can be used for stocks, soups, or nibbling.
Cut the carrot into equal slices, lengthwise. The size of the matchsticks will depend on how thick these slices are. If you want thin matchsticks, then be sure to cut thin slices. The same reasoning follows for thicker matchsticks, also known as a batonnet cut. The thickness may vary from 1/16 to ¼ inch.
Stack the slices evenly, then cut through the stacks to form matchsticks. The slices should be the same thickness as the previous step so that the thickness is even all around the matchstick.
Continue with the remaining pieces of carrot until you reach the desired amount.