Yes you can. White pepper is a common seasoning that can be used in a variety of cooking methods, including boiling noodles. Sprinkling white pepper on noodles adds a spicy and aromatic flavor to the noodles. However, everyone has different taste preferences, so if you don't like spicy flavors, you can choose other seasonings to add flavor to your noodles. Overall, white pepper is a great option to use when cooking noodles.