Carrot Top Pesto

I almost always buy fresh carrots with their feathery green tops attached. In the past, I would invariably cut the tops off and send them to the compost bin. Honestly, it never occurred to me that they were edible. But the tops of other root vegetables are edible, so why wouldn’t carrot tops be edible, too? One day I blanched the leaves, puréed them with a little olive oil, and then used the purée as a gorgeous green accent sauce for fish, much in the same way I use basil oil. My next idea