Start by cleaning your shrimp (gamberi). Remove the heads, shells, and the inner vein (the dark thread along the shrimp's back). Once cleaned, rinse the shrimp under cold running water and set them aside.
Boil a large pot of salted water. Add the spaghetti and cook it until it’s al dente. This means firm but cooked through, which is key to the perfect texture for this dish.
While the pasta is cooking, take a large sauté pan and heat 5 tablespoons of olive oil over medium heat. Add 1 whole garlic clove and let it sizzle until it turns golden, infusing the oil with its rich flavor. At this point, add the stems of fresh parsley for an additional aromatic boost.
Once the oil has absorbed the flavors, carefully remove the garlic clove and parsley stems. This ensures your sauce is flavorful without overpowering the delicate shrimp taste.
Now, it’s time to add the cleaned shrimp to the pan. Sauté the shrimp for about 2 minutes on each side, or until they turn pink and are cooked through. Shrimp cooks quickly, so keep an eye on them to avoid overcooking.
Drain the spaghetti, but reserve some of the pasta cooking water. Add the al dente pasta to the sauté pan with the shrimp. Toss everything together, and if the pasta seems a little dry, add a ladle of the reserved pasta water to create a silky sauce.
Finally, season the dish with a generous grinding of black pepper and a handful of freshly chopped parsley. Toss it all together to evenly distribute the flavors.