Chicken Pastissada

Ingredients

• 2 tablespoons unsalted butter
• 2 tablespoons extra virgin olive oil
• 4 ounces pancetta, finely diced
• 1 large clove garlic, minced
• 1 yellow onion, 1/2 –inch dice
• 1 large carrot, ½-inch dice
• 1 celery stalk, ½-inch dice
• 1 bay leaf
• ½ teaspoon ground coriander
• ¼ teaspoon ground cloves
• 2 ¼ pounds skinless, boneless chicken thighs, cut into 1 1/2 –inch pieces
• 2/3 cup Amarone or white Soave wine
• 3 tablespoons tomato paste
• 4 cups peeled, seeded and chopped canned tomatoes
• Salt and freshly ground black pepper
• Prepared polenta (3:1 ratio water to polenta)