Here is an easy way to make lemongrass simple syrup and store it in your refrigerator for cocktails.
Add sugar and water to saucepan and heat until all the sugar is dissolved. Pour the liquid in a glass jar for storage.
Trim the ends off of 5 stalks of lemongrass and discard. Use the middle section of lemongrass and gently break up with a kitchen mallet.
Place the mashed stalks of lemongrass in the warm simple syrup and leave to infuse for 3-4 days. Refrigerate after the liquid has cooled.
Remove the lemongrass stalks from the liquid and pour through a strainer. This mixture can be stored in the refrigerator for several months.