Poached Shrimp Cocktail with Tarragon Cocktail Sauce
This Poached Shrimp Cocktail is made with large shrimp cooked in a fennel-and-white-wine court-bouillon, served with a fresh tarragon cocktail sauce, and is ready in about 50 minutes. Growing up, my dad sold more shrimp cocktail out of his fish market than just about anything else, and the number-one mistake he saw was overcooking it. Rubbery, flavorless shrimp that had been boiled into submission. This version fixes that. Poaching the shrimp in a proper court-bouillon means they come out tender and flavorful on their own, before they ever touch the sauce.
Shrimp is one of the most versatile ingredients in my kitchen. It cooks fast, takes on flavor well, and works across so many different preparations. If you love this recipe, my Baked Shrimp Oreganata is another great entertaining option, with butterflied shrimp baked under a crispy, garlicky breadcrumb topping. For a full dinner built around shrimp, Creamy Tuscan Shrimp is a skillet meal with sun-dried tomatoes, spinach, and Parmesan that comes together in 35 minutes. And if you want something lighter and make-ahead friendly, the Mediterranean Shrimp Couscous is a bright, lemony option that works great for lunch or an easy weeknight dinner.
Ingredients Notes
Use 16/20 large shrimp, tail-on and already peeled and deveined. This is the ideal size for shrimp cocktail: big enough for a real bite without being overwhelming. If you size up to jumbo, you end up needing more sauce after the first bite, and nobody wants to be the double dipper at the party. The tails stay on for a reason too. They act as a natural handle so you’re never touching the part you’re eating. For the sauce, use jarred horseradish, not cream-style, and don’t skip the fresh tarragon. Stir it in right before serving to keep the flavor bright.
A Few Testing Notes:
The biggest lesson from testing this recipe was the court-bouillon — shrimp poached in plain water taste like nothing, and the fennel, wine, and aromatics are what give them flavor before they ever touch the sauce. The fennel in particular was a revelation: it perfumes the shrimp in a way that’s subtle but unmistakable. The ice bath is the other non-negotiable. The first few times I tested this, I skipped it or rushed it, and the shrimp kept cooking on the way to the fridge — even 30 extra seconds past that C-shape makes a difference. And one more: use jarred horseradish, not cream-style. I tested the sauce both ways and cream-style killed it, flattening out the sharp heat that makes shrimp cocktail sauce what it is.
How to Make Poached Shrimp Cocktail
- Build the court-bouillon. Combine the wine, bay leaf, fennel, peppercorns, onion, salt, spent lemon half, and 6 cups cold water in a wide saucepan. Bring to a boil, reduce heat, and simmer for 15 minutes.
2. Make the cocktail sauce base. Stir together the ketchup, horseradish, Worcestershire, and Tabasco while the court-bouillon simmers. Refrigerate until ready to serve.
3. Poach the shrimp. Bring the court-bouillon back to a rolling boil and add the shrimp, working in batches if needed. Poach 2 to 3 minutes until pink and curled into a gentle C-shape.
4. Transfer immediately to an ice bath. After 3 minutes in the ice bath, pat the shrimp dry and refrigerate for at least 30 minutes. Just before serving, stir the tarragon and lemon juice into the sauce and serve the shrimp over crushed ice, garnished with fennel fronds.
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Poached Shrimp Cocktail with Tarragon Cocktail Sauce
Equipment
- Wide saucepan or straight-sided skillet
- Large bowl for ice bath
- Sheet pan lined with paper towels
- Food processor or blender (for the sauce)
- Microplane or fine grater
Ingredients
For the shrimp & court-bouillon:
- 2 lbs jumbo shrimp U/15 or 16/20, tail-on, peeled and deveined
- 2 cups dry white wine
- 6 cups cold water
- 1 bay leaf
- 1 small fennel bulb fronds reserved, bulb roughly chopped
- 1 tsp whole black peppercorns
- 1 small yellow onion halved
- 2 tsp kosher salt
- 1 spent lemon half juiced from the cocktail sauce
For the cocktail sauce:
- 1 cup ketchup Heinz
- 3 tbsp jarred horseradish not cream-style
- 1 tsp Worcestershire sauce
- ½ tsp Tabasco
- 2 tbsp fresh tarragon leaves finely chopped
- 1 tbsp fresh lemon juice
Instructions
- Combine the wine, bay leaf, fennel bulb, peppercorns, onion, salt, spent lemon half, and 6 cups cold water in a wide saucepan. Bring to a boil, then reduce the heat and simmer for 15 minutes — this is when the aromatics open up and actually flavor the liquid. Don’t rush it.2 cups dry white wine, 6 cups cold water, 1 bay leaf, 1 small fennel bulb, 1 tsp whole black peppercorns, 1 small yellow onion, 2 tsp kosher salt, 1 spent lemon half
- Make the cocktail sauce. Stir together the ketchup, horseradish, Worcestershire, and Tabasco. Taste it — it should be punchy, savory, and have real heat. Refrigerate until ready to serve. Do not add the tarragon or lemon juice yet.1 cup ketchup, 3 tbsp jarred horseradish, 1 tsp Worcestershire sauce, ½ tsp Tabasco
- Bring the court-bouillon back to a rolling boil. Add the shrimp, working in batches if needed to avoid crowding. Poach for 2–3 minutes, watching closely. You’re looking for a gentle C-curve and opaque pink flesh — the moment you see it, they’re done. A tight curl means you’ve gone too far. Transfer immediately to the ice bath — this stops the cook instantly and is what gives you that clean, tender snap.2 lbs jumbo shrimp
- Leave the shrimp in the ice bath for 3 minutes, then transfer to a paper towel-lined sheet pan. Pat dry and refrigerate until fully chilled, at least 30 minutes. Cold shrimp on cold ice is non-negotiable.
- Just before serving, stir the tarragon and lemon juice into the cocktail sauce. These go in at the last moment — tarragon wilts and lemon fades fast. Adjust salt. Arrange the shrimp over crushed ice, sauce alongside, and scatter the reserved fennel fronds over the top.2 tbsp fresh tarragon leaves, 1 tbsp fresh lemon juice
Notes
- Watch the shape of the shrimp, not the clock. The shrimp are done when they curl into a loose C-shape and turn pink. A tight O-shape means they’ve gone too far.
- The ice bath is not optional. It stops the cooking immediately and is what keeps the shrimp tender rather than rubbery. Have it ready before the shrimp go into the court-bouillon.
- Add the tarragon to the sauce at the last minute. Fresh tarragon loses its brightness quickly once it hits acid, so stir it in right before serving.
- Use the spent lemon in the court-bouillon. The lemon you juice for the cocktail sauce still has plenty of flavor in the peel. Drop it straight into the poaching liquid. No waste, more depth.
- Store leftovers in an airtight container in the refrigerator for up to 2 days. Keep the shrimp and sauce separate, and note that the sauce actually improves overnight as the flavors meld.