Why be limited to basil cooking pesto? Swapping in flat-leaf parsley makes for a balanced sauce that allows you to really taste the nuts, the olive oil, the Parmesan. Use this sauce as you would any pesto, yes, swirled into pasta. Ingredients [ingredients] 1 pound spaghetti Kosher salt 1/2 cup unsalted, roasted almonds 4 cups fresh flat-...