Salsa Verde
Salsa verde, the classic green sauce of Italy, is a sauce of olive oil and chopped parsley flavored with lemon zest, garlic, and capers. It adds lively freshness to almost any simple dish. Flat-leaved Italian parsley is preferable, but curly parsley is good, too. Fresh parsley—the fresher the better—is the majority herb, but almost any other fresh, tender herb can enhance a salsa verde: tarragon, chervil, and chives are good choices. Use a sharp knife when you chop parsley (and other herbs). A sharp knife slices cleanly through the leaves, preserving both flavor and color, while a dull knife mashes and bruises them. The zest is the thin yellow outer layer of the lemon’s skin; avoid grating any of the bitter white part (called the pith) beneath. The zest brightens the flavor of the sauce, so don’t be shy with it; you may need more than one lemon’s worth. Don’t hesitate to experiment. I make salsa verde more or less thick depending on what I am using it for. I tend to use less oil when it’s for roasted meats and grilled vegetables and more for fish.