Pasta Bolognese Recipe

Ingredients

• 2 medium yellow onions, (peeled and chopped into 1-in (2.5-cm) chunks)
• 2 carrots, (peeled and chopped into 1-in (2.5-cm) chunks)
• 2 celery stalks, (cut into 1-in (2.5-cm) chunks)
• 3 cloves garlic, (very roughly chopped)
• 2 tablespoons extra-virgin olive oil
• 1⅓ lb 85% lean ground beef
• 4 oz pancetta, (finely diced)
• 1 teaspoon salt ((plus more for pasta water))
• ½ teaspoon freshly ground black pepper
• ½ cup dry red wine
• 2 cups beef broth
• 1 (14-oz) can crushed tomatoes (about 1¾ cups)
• ½ teaspoon dried oregano
• 1 cup whole milk
• 1 lb pasta, (for serving)
• Handful chopped fresh basil or parsley, (for serving (optional))
• Freshly grated Parmigiano-Reggiano, (for serving (optional))