I have always believed that zucchini is a vegetable that deserves more respect. Most people roast it into submission, brown it into oblivion, what a shame! But when you blanch it quickly and shock it in ice water, something magical happens: it stays the most vivid, jewel-bright green, and it blends into a sauce so creamy and elegant you would never guess how simple it truly is. The only other ingredients needed are olive oil, Parmigiano, pine nuts, garlic, and a little white wine vinegar for that perfect tang.