Why is saving pasta water necessary? How does it impact your finished dish? Lan Lam explains how to use starchy pasta water to create the perfect pasta sauce consistency by demonstrating it with a simple jarred marinara sauce, a semi-gloss coated cacio e pepe, and even perfecting a thicker oil-based sauce for spaghetti with tuna and capers. The Best Jarred Pasta Sauce Recipe: cooks.io/3TYiB4f Cacio e Pepe Recipe: cooks.io/4bRQUAi Spaghetti with Tuna and Capers Recipe: cooks.io/3UwqnlY Discover more techniques and rigorously tested recipes on the America's Test Kitchen App: cooks.io/3Jv0Vbm Get exclusive access to every recipe, review, and more via our homepage: cooks.io/4zg8JD1 Buy our cookbook 100 Techniques: Master a Lifetime of Cooking Skills, from Basic to Bucket List: cooks.io/4i8zJ16 Discover the latest recipes, tips, and tricks from Cook's Insider or keep up with the latest in our test kitchen from Notes from the Test Kitchen:...