Dinner · Part 3 of 3: Tips & recipe card

Slow Cooker Old Bay Butter Seafood Boil Tips, FAQ & printable recipe

Name: Slow Cooker Old Bay Butter Seafood Boil
Prep time: 10 min
Cook time: 3 h
Total time: 3 h 10 min
Cuisine: American
Ingredients: 4 split cold-water lobster tails; 1 lb raw jumbo shrimp, peeled and deveined; 2 cups frozen sweet corn kernels; 12 cloves garlic, smashed; 1/2 cup unsalted butter, melted; 2 tbsp Old Bay seasoning; 2 cups steamed white jasmine rice, for serving; 1 lemon, cut into wedges, for serving

By Clara Weller · Oct 29, 2026

Slow cooker filled with lobster tails, shrimp, corn, and garlic in a golden butter sauce

Prep: 10 min
Cook: 3 h
Total: 3 h 10 min
Serves: 4

Tips for success

For the most flavorful result, use high-quality lobster tails and fresh shrimp if available. Splitting the lobster tails helps them cook evenly and allows the butter to penetrate the meat.

If you prefer extra garlic flavor, add a few more cloves, but keep the 12-clove base for a balanced taste.

The leftover butter sauce is liquid gold. Serve it alongside the dish for dipping, or spoon it over the rice. You can also refrigerate the sauce and use it to sauté vegetables or as a base for a future seafood pasta. Just reheat gently to keep the butter from separating.

Variations

Spicy Cajun Twist: Replace Old Bay with Cajun seasoning and add a teaspoon of hot sauce to the butter. This brings a smoky, spicy kick that pairs well with the sweet corn and seafood.
Add Smoked Sausage: Slice 8 ounces of smoked sausage and layer it with the seafood. The sausage adds a savory, smoky depth that complements the butter sauce. Cook time remains the same.
Extra Vegetables: Add 2 cups of baby potatoes, halved, and 1 cup of chopped celery to the slow cooker. The potatoes will absorb the butter sauce and become tender during cooking. Increase cook time to 3 1/2 hours.
Lighter Butter Sauce: Use 1/4 cup of butter and 1/4 cup of chicken broth to lighten the sauce. Add 1 tablespoon of lemon juice for brightness. The sauce will be less rich but still flavorful.

Storage and make-ahead

Fridge: Store leftovers in an airtight container in the refrigerator for up to 3 days. Separate the seafood from the sauce to maintain texture.
Freezer: Freeze the seafood and sauce separately in freezer-safe containers for up to 2 months. Thaw overnight in the refrigerator before reheating.
Reheat: Reheat gently in a saucepan over low heat, adding a splash of water or broth to loosen the sauce. Avoid microwaving the seafood to prevent overcooking.

Store any leftovers in an airtight container in the refrigerator for up to 3 days. The seafood will continue to absorb flavor from the sauce, so the leftovers are delicious cold or reheated gently.

Separate the seafood from the sauce if you plan to store for more than a day to prevent the seafood from becoming too soft.

You can prepare the ingredients up to a day ahead by splitting the lobster tails, peeling the shrimp, and measuring the corn and garlic. Store them separately in the refrigerator.

The butter and Old Bay can be mixed in advance and kept in a sealed container. When ready to cook, simply layer everything in the slow cooker.

Serving ideas

Serve the seafood boil over steamed jasmine rice to soak up the rich butter sauce. The lemon wedges are essential for cutting through the richness; squeeze them over the seafood just before eating. A side of crusty bread or a simple green salad would round out the meal nicely.

For a more casual presentation, you can serve the seafood directly from the slow cooker, letting guests help themselves.

Provide small bowls for the butter sauce and extra napkins, as this dish is meant to be enjoyed with hands. The combination of textures and flavors is sure to impress.

Frequently asked questions

Can this recipe be made ahead of time?

Yes, you can assemble the ingredients in the slow cooker insert and refrigerate overnight. When ready to cook, place the insert in the slow cooker and cook on low for 3 hours. The cooking time may increase slightly if starting from cold, so check the seafood temperature before serving.

What sides go well with this seafood boil?

Steamed jasmine rice is a classic choice, but crusty bread, boiled potatoes, or a simple green salad also work well. The lemon wedges are essential to brighten the rich butter sauce. For a low-carb option, serve over cauliflower rice or steamed vegetables.

Can frozen lobster tails be used?

Yes, frozen lobster tails work perfectly. Thaw them overnight in the refrigerator before splitting. If you need to thaw quickly, place them in a sealed bag and submerge in cold water for 30 minutes. Pat dry before adding to the slow cooker.

How can the sauce be thickened?

If you prefer a thicker sauce, remove the seafood and corn after cooking, then whisk 1 tablespoon of cornstarch with 2 tablespoons of cold water into the butter sauce. Simmer on the stovetop until thickened, then pour over the seafood.

What if the seafood is not done after 3 hours?

If the internal temperature hasn't reached 145°F (63°C), cover and cook for an additional 15 to 30 minutes. Check every 15 minutes to avoid overcooking. The exact time can vary based on the size of the shrimp and lobster tails and the slow cooker model.

Recipe card

Slow Cooker Old Bay Butter Seafood Boil

Prep 10 minCook 3 hTotal 3 h 10 minServes 4

Ingredients

4 split cold-water lobster tails
1 lb raw jumbo shrimp, peeled and deveined
2 cups frozen sweet corn kernels
12 cloves garlic, smashed
1/2 cup unsalted butter, melted
2 tbsp Old Bay seasoning
2 cups steamed white jasmine rice, for serving
1 lemon, cut into wedges, for serving

Instructions

Place the split lobster tails and raw shrimp in the bottom of a 6-quart slow cooker. Scatter the sweet corn kernels and smashed garlic cloves over the seafood, distributing them evenly.
In a small bowl, stir the melted butter and Old Bay seasoning together. Pour the mixture evenly over the seafood and corn, making sure to coat the lobster tails and shrimp.
Cover the slow cooker and cook on low for 3 hours. The butter will melt and bubble gently, infusing the seafood and corn with rich flavor. Do not lift the lid during cooking to keep the heat steady.
After 3 hours, use an instant-read thermometer to check the thickest part of a lobster tail and a shrimp. They should register at least 145°F (63°C). The lobster meat should be opaque and the shrimp pink and curled.
Using a slotted spoon, lift the seafood, corn, and garlic from the butter bath. Serve over steamed jasmine rice with lemon wedges on the side. Drizzle a little of the cooking butter over each serving if desired.

Contains: crustaceans, milk

Estimated nutrition per serving

Calories: 540
Protein: 35 g
Carbohydrates: 25 g
Fat: 32 g

Automatic estimate from the ingredient list, not laboratory-verified.

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This recipe is based on a short cooking video and is published under the pen name Clara Weller. It was checked before publication, but errors can slip through. Nutrition, when shown, is an estimate. Read more in our editorial policy and on our food safety page.