Slow Cooker Old Bay Butter Seafood Boil

This slow cooker seafood boil brings together lobster tails, jumbo shrimp, sweet corn, and garlic in a rich Old Bay butter bath. Simply layer the ingredients, pour over the seasoned butter, and let the slow cooker do the work. The result is a tender, flavorful feast that tastes like a coastal boil without the fuss.

This recipe turns a classic seafood boil into a hands-off slow cooker meal. Split lobster tails and shrimp cook gently in a buttery sauce infused with Old Bay and garlic, while sweet corn soaks up all the savory goodness.

Serve over steamed jasmine rice with lemon wedges for a complete dinner that feels special but comes together with minimal effort.

Ingredients

Why this recipe works

The slow cooker provides a gentle, even heat that keeps lobster tails and shrimp tender without overcooking. Unlike boiling or grilling, the sealed environment traps moisture and flavor, allowing the seafood to cook in its own juices along with the seasoned butter.

This method is forgiving and nearly impossible to ruin, making it ideal for weeknight dinners or entertaining.

Old Bay seasoning is the backbone of this dish, delivering a complex blend of celery salt, paprika, and spices that complements the sweetness of the corn and the richness of the butter.

The garlic cloves soften and mellow as they cook, infusing the sauce with aromatic depth. The result is a cohesive, deeply flavorful sauce that coats every ingredient.

Notes and substitutions

Use split cold-water lobster tails for the best texture and flavor; they cook evenly and are easy to serve. If using frozen tails, thaw them overnight in the refrigerator before cooking. Raw jumbo shrimp should be peeled and deveined, but leaving the tails on adds visual appeal and a bit of extra flavor.

This recipe calls for a 6-quart slow cooker; a smaller one may crowd the ingredients and lead to uneven cooking.

Frozen corn works well here and saves prep time, but fresh corn cut from the cob is a delicious alternative. For a spicier kick, add a pinch of cayenne to the butter mixture, or increase the Old Bay to your taste.

• frozen sweet corn kernels: fresh corn cut from the cob, about 3 ears
• unsalted butter: salted butter, but reduce the Old Bay to 1 1/2 tablespoons to control salt
• raw jumbo shrimp: large shrimp, adjust cooking time to 2 1/2 hours
• Old Bay seasoning: a mix of 1 tablespoon paprika, 1 teaspoon celery salt, 1/2 teaspoon cayenne, and 1/2 teaspoon black pepper

Equipment

• 6-quart slow cooker
• slotted spoon
• measuring cups and spoons
• cutting board
• chef's knife
• small bowl for melted butter