In a large bowl, break up the tomatoes with your hands. Set aside.
28 ounces whole San Marzano tomatoes
Bring a large pot of water to a roaring boil. Add the salt and then the dry spaghetti. Cook for the length of time indicated on the box, reserving 1 cup of cooking water before draining.
1/2 teaspoon kosher salt, 8 ounces spaghetti
While the pasta is cooking, place a large skillet over medium-low heat. Add the olive oil and allow it to warm up. Add the garlic, anchovies, and red pepper flakes. Cook until the garlic is fragrant, stirring often, being careful not to brown or burn it. Cook for approximately two minutes.
3 tablespoons olive oil, 4 garlic cloves, 6 anchovies fillets, 1/2 teaspoon red pepper flakes
Add in the broken-up whole tomatoes. Bring to a simmer and cook for 15 to 20 minutes.
Stir in the olives, capers, and parsley. Season with salt and pepper. Add in the cooked spaghetti and toss to combine. If the sauce is too thick, you can loosen it with some of the reserved pasta water. Serve warm and enjoy.
1/2 cup Kalamata olives, 1/4 cup parsley, 3 tablespoons capers, dash freshly ground black pepper