Tuscan Meat and Tomato Ragu - Lidia

Ingredients

• 1/2 cup dried porcini
• 1 medium onion, in chunks (1 cup or more)
• 2 ribs celery, in chunks (about 2 cups)
• 1/3 cup extra-virgin olive oil
• 1 pound ground veal
• 1 pound ground pork
• 1 pound sweet Italian sausage, removed from the casing and crumbled
• 2 teaspoons salt or to taste
• 2 cups red wine
• 3 cups (or a 28-ounce can) canned Italian plum tomatoes, preferably San Marzano, crushed by hand
• Meat, poultry or vegetable stock, or water, as needed
• Freshly ground black pepper to taste