Build the poaching liquid
Combine water, salt, lemon, celery, onion, bay, peppercorns and seafood seasoning. Bring to a boil, then reduce to a strong simmer for 10 minutes.

Plump chilled shrimp with real snap, cooked in a seasoned pot below a hard boil and paired with a horseradish-heavy cocktail sauce that actually tastes alive.
Jump to RecipeAI-generated serving illustration. It is not a photograph of a tested batch or a doneness reference.
Combine water, salt, lemon, celery, onion, bay, peppercorns and seafood seasoning. Bring to a boil, then reduce to a strong simmer for 10 minutes.
Turn the heat down until the liquid is around 175 to 185°F / 80 to 85°C — steaming and moving, but not rolling.
Add the shrimp. Cook 2 to 4 minutes depending on size, stirring once, until just opaque through the center.
Lift the shrimp straight into a large ice bath for 2 minutes. Drain thoroughly and refrigerate until cold.
Peel chilled shell-on shrimp, leaving the tail segment on for serving. Pat dry before plating.
Stir ketchup, horseradish, lemon, Worcestershire and hot sauce together. Chill 10 minutes, then taste — it should be sharper than you think.
Arrange shrimp over ice or a chilled platter with cocktail sauce and lemon wedges.
OPTIONAL UPGRADE
Keep the core recipe clean, or flip this on for one or two high-impact upgrades.
Use these recipe-specific texture cues. Color and curl alone cannot establish safety; use a thermometer to check 145°F / 63°C at the thickest part for cooked shrimp.
The little details that make a big difference.
The pot can boil before the shrimp goes in. Once they are cooking, keep it gentler.
The shell buffers the flesh and adds flavor to the poaching liquid.
Large shrimp chill well without turning mealy and feel substantial with cocktail sauce.
The ice bath stops carryover immediately; warm shrimp keep cooking after they leave the pot.