Creole Shrimp & Grits

INGREDIENTS

• :
• 2 pounds unpeeled, medium-size raw shrimp (26/30 count)
• 4 cups water
• 4 tablespoons unsalted butter
• 1/3 cup all-purpose flour
• 1 medium onion, finely chopped
• 2 celery ribs, chopped
• 1 green bell pepper, chopped
• 2 garlic cloves, minced
• 1½ teaspoons Creole seasoning
• 1 teaspoon lemon juice
• ½ teaspoon Worcestershire sauce
• 1 (6-ounce) can tomato paste
• 1 bay leaf
• 2½ cups milk
• 2½ cups water
• 1 teaspoon salt
• 1½ cups uncooked quick-cooking grits