The primary ingredient in a traditional spaghetti dish is spaghetti itself, a long, thin pasta made from durum wheat semolina. Spaghetti is commonly cooked in boiling water until al dente and served with various sauces. The most popular sauce for spaghetti is marinara, made from tomatoes, garlic, herbs, and olive oil. Other variations include meat sauce (bolognese), pesto, and carbonara. Spaghetti is not only a staple in Italian cuisine but has become beloved worldwide, often served with a variety of toppings and accompaniments.