The Incredible Science Backed Trick That Guarantees Perfect Cacio e Pepe Pasta Every Time

Name: The Incredible Science-Backed Trick That Guarantees Perfect Cacio e Pepe Pasta Every Time
Ingredients: Salt; 1/2 pound (225g) dried spaghetti (see note); 1 teaspoon (4g) cornstarch; 1/4 cup (45ml) water; 1 teaspoon (4g) coarsely ground black pepper, plus more for serving; 1 packed cup finely grated Pecorino Romano cheese (5 ounces; 140g), plus more for serving