Prepare the pesto according to this recipe, using ⅓ cup olive oil. Work through this step deliberately rather than rushing it, because this is where the texture and balance of the recipe start to take shape. Keep the listed quantities and order of operations unchanged, and have the next ingredients ready before you move on. Pay attention to the sensory cues in the food: aroma, color, softness, thickness, and how easily the ingredients move when stirred or handled.

These signs are usually more reliable than timing alone. The biggest mistake is moving ahead before this step looks complete.

Bring a large pot of salted water to a boil. Prepare the spaghetti according to the package instructions, cooking until al dente. Work through this step deliberately rather than rushing it, because this is where the texture and balance of the recipe start to take shape. Keep the listed quantities and order of operations unchanged, and have the next ingredients ready before you move on.

Reserve 1 cup of the pasta cooking water, then drain. Work through this step deliberately rather than rushing it, because this is where the texture and balance of the recipe start to take shape. Keep the listed quantities and order of operations unchanged, and have the next ingredients ready before you move on. Keep the pan at a steady, controlled heat so the ingredients soften and develop flavor without scorching.

Stir or toss only as needed, giving the food enough contact with the pan to cook properly. If anything begins to brown too quickly, lower the heat before adding more ingredients.

Transfer the pasta to a large skillet. Add the pesto and ½ cup*** of the starchy pasta water and toss to coat, adding more pasta water as needed to coat the pasta in a lightly creamy sauce. Work through this step deliberately rather than rushing it, because this is where the texture and balance of the recipe start to take shape. Keep the listed quantities and order of operations unchanged, and have the next ingredients ready before you move on.

If desired, gently warm the pasta over low heat. Work through this step deliberately rather than rushing it, because this is where the texture and balance of the recipe start to take shape. Keep the listed quantities and order of operations unchanged, and have the next ingredients ready before you move on. Keep the pan at a steady, controlled heat so the ingredients soften and develop flavor without scorching.

Stir or toss only as needed, giving the food enough contact with the pan to cook properly. If anything begins to brown too quickly, lower the heat before adding more ingredients.

Season to taste and serve topped with freshly grated Parmesan and lots of basil. Work through this step deliberately rather than rushing it, because this is where the texture and balance of the recipe start to take shape. Keep the listed quantities and order of operations unchanged, and have the next ingredients ready before you move on. Pay attention to the sensory cues in the food: aroma, color, softness, thickness, and how easily the ingredients move when stirred or handled.

These signs are usually more reliable than timing alone. The biggest mistake is moving ahead before this step looks complete.