Bring water to a boil in a 6-8 qt. pot. Add 3 teaspoons kosher salt and the pasta to the boiling water. Give everything a quick stir and let the pasta cook over medium-high heat until al dente, typically about 10-12 minutes. See TIP A for some common pasta cooking mistakes to avoid.
TIP A: Cooking pasta is about as easy as it gets, but there are a few common mistakes that you want to be sure to avoid. The first mistake to avoid is using too little water. You want at least a 4:1 ratio of water to pasta so that the water does not become too starchy. An adequate water to pasta ratio prevents the pasta from turning gummy and sticky and helps the water maintain a rolling boil throughout the cooking process. The second mistake to avoid is under-salting the water (or not salting it at all). The boiling stage is your only opportunity to season the pasta itself and bring out its natural, nutty flavor. Salting the water is the best way to achieve this, and you'll likely need to add much more salt than you think. You should use 1 tsp. of salt for every 1 cup of pasta and 4 cups of water. In the end, you want the pasta water to taste like the ocean. The final mistake to avoid is rinsing the pasta after it has cooked. Rinsing the pasta removes the starch from the outside of the pasta, and you actually want some starch to remain to help soak-up and thicken the sauce.