Chicken Cacciatore - Lidia

Ingredients

• 2 broiler chickens (about 2 ½ pounds each, preferably free range)
• salt
• Freshly ground pepper
• All-purpose flour
• 1/4 cup vegetable oil
• 1/4 cup olive oil
• 1 small yellow onion, cut into 1-inch cubes (about 1 cup)
• 1/2 cup dry white wine
• One 28-ounce can Italian plum tomatoes, preferably San Marzano, with liquid, crushed
• 1 teaspoon dried oregano, preferably the Sicilian or Greek type dried on the branch, crumbled
• 2 cups sliced white or shiitake mushrooms (about 8 ounces)
• 1 each, red and yellow bell peppers, cored, seeded and cut into 1/2-inch strips (about 2 cups total)