Emeril's Favorite Boiled Shrimp

INGREDIENTS

• 1 rib celery, cut into 1-inch pieces
• 1/4 cup white wine
• 2 sprigs fresh thyme
• 1/2 lemon, squeezed (juice reserved) and the shell, plus 4 wedges for garnish
• 3 sprigs fresh parsley
• 1 pound medium (about 30) shrimp, peeled and deveined, tail segment left intact
• 2 tablespoons salt
• 1/2 teaspoon cayenne pepper
• 1 teaspoon whole black peppercorns
• 4 cups water
• 1 teaspoon coriander seeds
• 1 tablespoon Essence, recipe follows
• 1 sprig fresh tarragon
• Cocktail sauce, recipe follows
• 2 bay leaves