I have a recipe that calls for lemongrass, chopped finely. I have removed the outer part of the stalk and chopped the tender inner part. However, there is NO discernable taste of lemon at all. It tastes like nothing. Is that because the stalk is old, or out of season? Should I use lemon zest as a substitute? Or am I supposed to finely chop some of the courser part of the stalk which does taste a bit like lemongrass? The recipe includes lime juice and lime zest.
Thanks in advance.