We were both driving home from our separate jobs in our separate cars when we both heard the same story on NPR and both had the same thoughts about dinner tonight. With the abundance of fresh basil this time of year and the rising cost of pine nuts, on this evening's program they featured a recipe for Pistachio Pesto . It was presented by the author of an Italian cookbook, and even though we disagreed with her about basil (she says it's sweet when it's really a bitter) and olive oil (she says it's fruity when it's actually nutty), we trusted her on the whole pistachio as a substitute for pine nuts thing.