Classic Spaghetti and Meatballs

Name: Classic Spaghetti and Meatballs
Ingredients: 1/4 cup olive oil; 6 garlic cloves, thinly sliced; 2 sprigs basil; 2 (28-ounce) cans whole peeled tomatoes; Kosher salt, freshly ground pepper; 3 thick slices white sandwich bread, crusts removed; 2 large eggs, beaten to blend; 2 garlic cloves, finely chopped; 1/3 cup fresh whole-milk ricotta; 1/4 cup finely chopped prosciutto; 1/4 cup finely chopped parsley; 1/3 cup grated Parmesan, plus more; 3/4 teaspoon fennel seeds; 3/4 teaspoon dried oregano; 1/2 teaspoon ground nutmeg; 1/2 teaspoon finely ground black pepper; 1/4 teaspoon crushed red pepper flakes; 1 1/4 teaspoons kosher salt, plus more; 1 pound ground beef chuck, preferably 20% fat; 2 tablespoons olive oil, plus more; 12 ounces spaghetti; Torn basil (for serving; optional); A spice mill or mortar and pestle