Slow Cooker Old Bay Butter Lobster Tails and Shrimp

This slow cooker seafood recipe is the ultimate hands-off dinner: lobster tails and jumbo shrimp simmer in a golden garlic butter bath with bright lemon, briny capers, and a hit of Old Bay.

Everything goes into the crockpot in minutes, and the slow cooker does the rest — no boiling pots, no splattering butter, no complicated technique. The result is tender, buttery shellfish with a sauce that begs to be spooned over rice or sopped up with crusty bread.

Slow cooker seafood might sound unusual, but it's actually one of the best ways to cook shellfish gently. The low, steady heat of the crockpot poaches lobster and shrimp in their own buttery juices, keeping them moist and tender instead of rubbery.

This recipe layers split lobster tails, jumbo shrimp, lemon slices, capers, white wine, garlic butter, and Old Bay — then walks away. After a couple of hours, the kitchen smells like a coastal seafood shack, and dinner is ready with zero fuss. Serve over steamed jasmine rice or with warm bread to catch every drop of the sauce.

Ingredients

Why this recipe works

The slow cooker creates a gentle, moist heat that is ideal for shellfish. Unlike high-heat cooking methods that can toughen shrimp and lobster, the low setting allows the proteins to cook slowly and evenly, so the meat stays succulent and tender. The butter and wine form a flavorful poaching liquid that keeps everything moist while infusing the seafood with garlic, lemon, and Old Bay.

Because the ingredients are simply layered and left alone, this recipe is nearly foolproof. The lemon and capers brighten the rich butter, while the white wine adds a subtle acidity that balances the dish. The Old Bay brings warmth and a touch of heat, and the slow cooker melds all those flavors into a cohesive, luscious sauce that you'll want to eat with a spoon.

Notes and substitutions

Use the best lobster tails you can find — cold-water tails (from Maine or Canada) are sweeter and more tender than warm-water tails. If you can't find Meyer lemons, regular lemons work fine.

The capers add a briny pop that cuts through the butter, so don't skip them. For the white wine, choose something dry and crisp, like a Sauvignon Blanc or Pinot Grigio; if you prefer not to use wine, substitute seafood stock or chicken broth.

This recipe calls for a 7-quart slow cooker; if yours is smaller, adjust the quantities or cook in batches. Melted garlic herb butter can be homemade — just stir minced garlic and chopped parsley into melted butter — or use a store-bought version.

Old Bay is essential for that classic seafood-boil flavor; if you don't have it, a mix of celery salt, paprika, and cayenne can work in a pinch.

• Meyer lemon: Regular lemon or lime
• white wine: seafood stock or chicken broth
• garlic herb butter: unsalted butter with 2 minced garlic cloves and 1 tsp dried parsley
• jumbo shrimp: large shrimp or extra lobster tails

Equipment

• 7-quart slow cooker
• slotted spoon
• measuring cups and spoons
• small bowl for butter