Costco Shrimp Cocktail Copycat | Cold Platter Done Right

This chilled shrimp platter pairs tender poached shrimp with a zippy tomato-horseradish sauce that tastes close to the deli tray favorite.

Costco’s shrimp cocktail works because it keeps things clean and balanced. The shrimp are plump, cold, lightly seasoned, and easy to eat. The sauce brings the punch: tomato, horseradish, lemon, and enough heat to wake up the whole platter. A good copycat recipe doesn’t need gimmicks. It needs the right shrimp, careful cooking, and a sauce that lands sharp and bright instead of flat and sugary.

This version is built for that same deli-case feel. You’ll poach shrimp just until opaque, chill them fast, then pair them with a firm, cold cocktail sauce. You can plate it on a round tray with lemon wedges if you want the full warehouse look, or pile it into a bowl for a party table. Either way, the result feels familiar and homemade at the same time.

What Makes This Platter Taste Like The Store Version

The Costco tray keeps seasoning light. That matters. Shrimp cocktail should taste like shrimp first, not garlic butter, old bay, or a heavy marinade. The sauce does the loud work, while the shrimp stay clean, sweet, and firm.

The other piece is temperature. This dish is better cold than cool. Shrimp that sit out too long go soft. Sauce served warm loses its edge. Chill both pieces well, then assemble right before serving. That one move gets you closer than any secret ingredient.

• Use large shrimp: 21/25 count gives that meaty bite people expect from a deli platter.
• Cook gently: hard boiling turns shrimp tight and chalky.
• Shock in ice water: this stops carryover cooking and keeps the texture snappy.
• Go heavy on horseradish: that’s where cocktail sauce gets its bite.
• Let the sauce rest: 20 to 30 minutes in the fridge helps it come together.

Costco Shrimp Cocktail Copycat Ingredients That Matter Most

For The Shrimp

You want large raw shrimp, peeled and deveined, with tails on. Tails make the tray easier to grab and give it that familiar party look. Fresh or frozen both work. If you buy frozen, thaw them in the fridge, pat them dry, and keep them cold until cooking.

For the poaching liquid, all you need is water, kosher salt, lemon slices, and a few peppercorns. That light mix seasons the shrimp without crowding out their natural flavor. Skip heavy spice blends here. They pull the recipe away from the clean deli style.

For The Sauce

The sauce starts with ketchup and prepared horseradish. Then add lemon juice, Worcestershire sauce, a little hot sauce, and a pinch of salt. Some copycat recipes stir in chili sauce or celery salt. You can, but start small. You want a bright, tomato-forward dip with a sharp horseradish kick, not a steak sauce clone.

If you like a slightly fresher edge, add a tiny spoon of grated onion. Not enough to taste “oniony.” Just enough to sharpen the back end. That little trick helps the sauce feel more deli-made than bottled.

How To Cook The Shrimp So They Stay Tender

Bring a wide pot of water to a gentle simmer with salt, lemon, and peppercorns. Drop in the shrimp and watch them closely. They’re done when they turn opaque and curl into a loose “C.” If they twist into tight circles, they’ve gone too far.

FDA safe food handling guidance says seafood should be cooked until it reaches a safe doneness, and shrimp are done when the flesh turns pearly and opaque. In practice, large shrimp often need only 2 to 3 minutes.

1. Fill a large bowl with ice water before you start cooking.
2. Simmer the poaching liquid; don’t let it roll hard.
3. Add the shrimp in one layer if your pot allows.
4. Cook until just opaque.
5. Move them straight to the ice bath for 3 to 4 minutes.
6. Drain well and chill in the fridge until cold.

If you’re feeding a crowd, cook in batches. A crowded pot drops the water temperature too far, then leaves some shrimp overdone while others lag behind. Small batch cooking gives you a cleaner result and a prettier platter.

How To Make The Sauce Taste Right

Stir together 1 cup ketchup, 3 to 4 tablespoons prepared horseradish, 2 teaspoons lemon juice, 1 teaspoon Worcestershire sauce, a few dashes of hot sauce, and a pinch of salt. Taste it cold, not at room temperature. Cold sauce always reads a little flatter, so that’s the test that counts.

You’re chasing three notes at once: sweet tomato up front, horseradish heat in the middle, and a clean acidic finish. If the sauce tastes dull, add lemon. If it tastes too sweet, add horseradish or a drop more Worcestershire. If it tastes harsh, add a spoon of ketchup to round it out.

Ingredient	What It Does	How Much To Start With
Large raw shrimp	Main texture and flavor	2 pounds
Kosher salt	Seasons poaching liquid	2 tablespoons
Lemon slices	Adds brightness to shrimp	1 lemon
Peppercorns	Gentle background spice	1 teaspoon
Ketchup	Base of cocktail sauce	1 cup
Prepared horseradish	Gives the dip its bite	3 to 4 tablespoons
Lemon juice	Sharpens the finish	2 teaspoons
Worcestershire sauce	Adds savory depth	1 teaspoon
Hot sauce	Builds gentle heat	3 to 5 dashes

Plating It So It Feels Like A Costco Tray

The store version is neat, cold, and built for grabbing one shrimp at a time. Use a round platter or shallow serving tray. Put a small bowl of cocktail sauce in the center, then arrange the shrimp around it in circles with tails facing out. Tuck lemon wedges into two or three spots so the tray looks full without feeling crowded.

If you want to get close to the deli case look, line the tray with a thin layer of crushed ice under a second plate or under parchment. That extra chill keeps the shrimp firm during parties, brunches, and holiday spreads.

Make-Ahead Timing

This is a great make-ahead dish. Poach and chill the shrimp up to one day ahead. Mix the sauce the same day or the night before. Store them apart, then plate close to serving time. That keeps the shrimp from sitting in condensation.

FoodSafety.gov’s cold food storage chart is a handy check for fridge timing, and it’s a good reminder that cooked seafood should stay cold and be eaten within a short window.

Costco Shrimp Cocktail Copycat Troubleshooting For Better Texture

If your first batch misses the mark, the fix is usually simple. Most shrimp cocktail problems come down to cooking time, chilling, or sauce balance. Here’s how to dial it in fast.

If This Happens	Likely Cause	Fix
Shrimp feel rubbery	They cooked too long	Use a gentler simmer and chill them fast
Shrimp taste bland	Poaching liquid lacked salt	Salt the water more boldly next time
Sauce tastes flat	Not enough horseradish or lemon	Add both in small steps, then chill again
Sauce tastes harsh	Too much horseradish or hot sauce	Stir in ketchup to soften the edge
Tray gets watery	Shrimp were not dried well	Pat dry after the ice bath and before plating
Shrimp lose their snap	They sat out too long	Keep the platter cold until serving

Small Tweaks If You Want It Closer To The Warehouse Version

Some Costco trays lean sweeter in the sauce. Others hit harder on horseradish. The product itself can vary a bit by supplier and region. The cleanest way to tune your copycat is to adjust the sauce in tiny moves and leave the shrimp alone.

• Add 1 teaspoon chili sauce if you want a sweeter tomato note.
• Add extra horseradish if you like a bigger nasal heat.
• Add a pinch of celery salt for a deli-style finish.
• Add one small grated onion spoonful for a sharper edge.

The platter sold by Costco also leans on presentation. Their Kirkland Signature shrimp cocktail listing shows the familiar combo of cooked shrimp, cocktail sauce, and lemon wedges. That simple setup is part of why the tray works so well for parties.

Serving Ideas That Fit This Copycat

This shrimp cocktail fits all the usual party moments: holiday spreads, baby showers, game-day snack tables, and hot-weather dinners when nobody wants a heavy main. It also works as part of a larger seafood board with crab dip, oysters, smoked salmon, and crackers.

Serve it with lemon wedges, plenty of napkins, and small plates. If the tray will sit out for a while, set it over a larger bowl filled with ice. That keeps the texture right and the sauce cold enough to stay sharp from first bite to last.

Why This Recipe Works So Well At Home

A good copycat should save money, taste close to the original, and still feel worth making from scratch. This one does all three. The ingredients are easy to find, the cooking window is short, and the payoff is a platter that looks polished without much fuss.

You end up with tender shrimp, a lively sauce, and a tray that disappears fast. That’s the whole point of shrimp cocktail. It should feel easy, look generous, and taste cold, briny, and bright enough to make people come back for another pass.