Summer is pesto time, at least in my house. Almost every green leaf i can get my hands on, from basil and parsley to carrot tops and kale, will get a whirl in the food processor with the requisite garlic, nuts, cheese, and olive oil over the course of the season. Yet despite my willingness to push pesto boundaries, i've never slipped in anchovies and green olives. This idea, from melissa hamilton and christopher hirsheimer's canal house cooks every day, was a revelation.