Spaghetti and Meatballs alla Nonna

Ingredients

• 1 large white onion
• 4 cloves garlic
• 2 to 4 tbsp fresh herbs (Italian parsley, basil)
• 2 tbsp grapeseed or vegetable oil
• 1/3 cup Parmigiano-Reggiano (can use half percorino, if desired)
• 4 slices thick-cut bread (approx. 2 cups)
• 1 cup milk
• 1 1/2 lb lean ground beef
• 3/4 lb ground pork
• 3/4 lb ground veal
• 1 large egg
• 1 to 2 tsp chili flakes (optional)
• 1 tbsp kosher salt
• 1 tsp freshly ground black pepper
• 1 tsp grapeseed or vegetable oil
• Tomato Sauce (approx. 3/4 cup per person)
• grapeseed or vegetable oil, as needed
• 6 L/qt cold water
• salt (1 tsp salt per L/qt of water)
• dried or fresh pasta (approx. 4 oz per person)