Add shrimp to the simmering liquid. Cook until shrimp turn pink, about 2-3 minutes.

Drain the shrimp after a few minutes and pat dry with paper towels.

Fill a large pot with 8 cups of water. Add lemon halves, salt, peppercorns, and Old Bay seasoning. Bring to a simmer.

Prepare a bowl of ice water. Once shrimp are cooked, transfer them quickly to the ice water to stop the cooking.

Serve chilled with your favorite cocktail sauce. Enjoy this classic appetizer!