Slow-Cooker Old Bay Butter Seafood Boil

This slow-cooker seafood boil brings the coastal boil experience home with minimal effort. Lobster tails, jumbo shrimp, sweet corn, and baby red potatoes simmer together in a rich garlic butter sauce seasoned with Old Bay.

The slow cooker does the work, leaving you with a spectacular dinner that looks and tastes like a special occasion. Perfect for weeknights when you want something impressive without standing over a pot. Serve with rice and lemon wedges for a complete meal.

A seafood boil is a festive, flavorful meal, but it often requires a large pot, a burner, and careful timing. This slow-cooker version simplifies everything: you layer the ingredients, pour over a garlicky butter sauce, and let the machine work its magic.

The result is tender lobster and shrimp, sweet corn, and creamy potatoes all infused with the warm, spicy notes of Old Bay. It's a hands-off way to enjoy a coastal favorite any night of the week.

Ingredients

Why this recipe works

Cooking the seafood and vegetables together in a slow cooker allows the flavors to meld gently. The butter and Old Bay create a savory, aromatic bath that coats every piece.

Low, slow heat keeps the lobster and shrimp tender, preventing the toughness that can happen with rapid boiling. The potatoes and corn absorb the seasoned butter, becoming a delicious side dish in their own right.

The slow cooker also requires no stirring or monitoring, making it truly a dump-and-forget meal. This method is forgiving: you can hold the dish on warm for a while without overcooking, as long as you don't leave it for too long. The natural juices from the seafood and vegetables mingle with the butter, creating a sauce that's perfect for spooning over rice.

Notes and substitutions

Use cold-water lobster tails for the sweetest, most tender meat. Split them down the center so the meat is exposed and cooks evenly. Jumbo shrimp should be peeled and deveined, but leaving the tails on adds visual appeal.

Baby red potatoes hold their shape during long cooking and have a creamy texture. Sweet yellow corn, halved, fits easily in the slow cooker and soaks up the butter.

A 6-quart slow cooker is ideal for this amount. If your slow cooker is smaller, reduce the quantities or cut the potatoes and corn into smaller pieces. Old Bay seasoning is essential for that classic seafood boil flavor; if you don't have it, you can substitute a Cajun blend, but the result will be different. For a spicy kick, add a pinch of cayenne to the butter sauce.

• lobster tails: Use extra jumbo shrimp or king crab legs for a more budget-friendly boil.
• baby red potatoes: Substitute Yukon Gold or fingerling potatoes, cut into 1-inch pieces.
• unsalted butter: Salted butter works, but reduce added salt in the sauce.
• Old Bay seasoning: Use a Cajun seasoning blend plus a pinch of celery salt and paprika.

Equipment

• Slow cooker (6-quart or larger)
• Small saucepan
• Mixing bowl
• Slotted spoon
• Cutting board
• Chef's knife
• Measuring cups and spoons