10 cups cold water
2 medium carrots, quartered
2 stalks celery, quartered
1 large onion, quartered
1 head garlic, halved
1 lemon, halved
1/2 bunch parsley
5 sprigs fresh thyme
2 bay leaves
1 pound medium or large shrimp, in the shell, rinsed
1 tablespoon kosher salt
Cocktail Sauce, recipe follows
Lemon wedges
1 cup ketchup
1 lemon, zest finely grated and juiced
4 teaspoons prepared horseradish, or to taste, drained
1/4 teaspoon Worcestershire sauce
Hot sauce, to taste