Authentic Shrimp Creole with Spicy Tomato Sauce

Ingredients

• 2 tablespoons salted butter
• 1 tablespoon olive oil
• 3 celery ribs, finely diced
• 1 small sweet onion, diced
• 1 green bell pepper, seeded and diced
• 3 garlic cloves, finely minced
• 1 tablespoon all-purpose flour
• 2 teaspoons Cajun seasoning
• 1 teaspoon sugar
• ½ teaspoon chili powder
• ¾ teaspoon salt
• ⅓ cup chicken broth
• 1 (15-ounce) can crushed tomatoes
• 1 tablespoon Worcestershire sauce
• 2 bay leaves
• 1 teaspoon Tabasco sauce (optional)
• 1 pound large shrimp, peeled, deveined, tails removed
• 4 cups cooked white rice
• Chopped flat-leaf parsley (optional)