Ravioli with Wild Mushroom Demi-glace Cream Sauce Recipe - (4/5)

Ingredients

• /4 cup olive oil
• 1 red onion, thickly sliced
• Salt
• 1/2 teaspoon crushed red pepper
• 1 pound assorted mushrooms, including porcini, cremini, oyster, wood ear and white button
• 1 bay leaf
• 1/4 cup balsamic vinegar
• 1/4 cup chopped flat-leaf parsley, plus more for garnish
• 1 tablespoon chopped garlic
• 1/4 cup red wine
• 1 cup demi-glace
• 1/2 cup heavy cream
• 1 pound fresh ravioli
• Freshly grated Parmesan, for garnish