How To Cut Lemongrass. The flavorful part of lemongrass is the lower part of the stalks and it is usually sold with the leaves and upper stalks removed. Cut it down to as little as 3 feet 9 m high and prune it regularly to keep it that size if you so desire.
The bulb base the stem and the leaves. How to Cut LemongrassCynthia finds the tender partThe slender fragrant stalk that gives Thai food its unique taste can be daunting. Begin by chopping off the bottom bulb of the lemongrass stalk about a half of an inch.
Use a knife to cut the lemongrass in half the long way so that you have two pieces that each have a flat side.
Position your knife at the bottom of the stalk ground level and cut. You can use lemon grass in dishes ranging from soups to desserts. Trim off the leaves and set them aside. Lemongrass is very forgiving and can be cut back quite drastically.