I tried making tasty green tea infused noodles after trying some store-bought ones. Just made some tea in a pot, and then cooked the noodles in it. The taste was best when I simply cooked the pasta and added the leaves for the last 5 minutes. Still, not very strong, way weaker than what I bought. I suspect it's just too short, or perhaps it doesn't work well with spaghetti. Online recipes clearly got even worse results I did as they usually follow the first method.
Perhaps there's a better way?