Slow Cooker Shrimp Boil

Enjoy a fuss-free, flavor-packed slow cooker shrimp boil loaded with tender shrimp, seasoned potatoes, smoky sausage, and sweet corn.

Why This Recipe Works:

• Staged cooking prevents overcooking the delicate seafood while ensuring the dense potatoes are buttery-soft.
• Slow steeping coaxes out the oil-soluble flavor compounds in the Old Bay seasoning, infusing the broth deeply.
• Steaming the shrimp in the final 20 minutes keeps them incredibly juicy and tender.

I still remember the humid July evening I tried to host a traditional backyard seafood boil, only to end up sweating over a roaring outdoor propane burner while my guests huddled inside the air-conditioned kitchen.

It was a disaster.

Boiling delicate seafood on a massive scale is incredibly tricky because water has a high thermal mass, meaning it holds heat so intensely that it turns shrimp into rubbery, bouncy-ball-textured disappointments in a matter of seconds.

I learned this the hard way.

But when you transition this classic feast to a slow cooker, you gain absolute control over the heat curve, allowing the heavy red potatoes and smoky andouille sausage to slowly steep in a bath of spices before you gently steam the shrimp right at the very end.

You do not need a giant outdoor burner or a messy newspaper-lined table to pull this off.

For the seasoning, I tested this with several brands, but hands down, nothing clings to the potatoes quite like a generous dump of classic Old Bay paired with Diamond Crystal kosher salt (use 1 tablespoon or 9 grams if you are measuring precisely).

Just toss everything in, tap the tongs against your hip to signal you are ready, and let the slow cooker do the heavy lifting.

If you are looking to round out your menu, this feast pairs beautifully with a side of crunchy Spicy Jalapeño Coleslaw to cut through the rich, buttery spices.

For another quick seafood fix on busy weeknights, you should definitely try our Garlic Shrimp Rice Bowl.

Slow Cooker Shrimp Boil

• Publisher Storied Skillet
• Cuisine American
• Category Dinner, Seafood
• Prep Time 15 mins
• Cook Time 4 hours
• Servings 4
• Calories 450 calories
• Rating 4.8 5063
• Tags slow cooker shrimp boil, crockpot shrimp boil, southern shrimp boil

Ingredients

• 1.5 lbs baby red potatoes, halved
• 1 lb smoked andouille sausage, sliced into 1-inch rounds
• 3 ears of fresh corn, husked and cut into thirds
• 1 small yellow onion, wedged
• 4 cloves garlic, smashed
• 3 tbsp Old Bay seasoning
• 1 tbsp Diamond Crystal kosher salt
• 4 cups water
• 1 lb large shrimp (16-20 count), peeled and deveined
• 4 tbsp unsalted butter, melted
• 1 lemon, cut into wedges
• Fresh parsley, chopped (for garnish)

Directions

1. Add the halved baby red potatoes, sliced andouille sausage, corn pieces, yellow onion wedges, and smashed garlic to the slow cooker insert.
2. Sprinkle the Old Bay seasoning and Diamond Crystal kosher salt over the ingredients, then pour in the water. Stir gently to distribute the spices.
3. Cover and cook on HIGH for 3.5 to 4 hours (or on LOW for 7 to 8 hours) until the potatoes are completely fork-tender.
4. Once the potatoes are tender, gently fold in the raw shrimp. Cover and cook on HIGH for an additional 15 to 20 minutes, just until the shrimp turn pink and opaque.
5. Drain the liquid from the slow cooker, transfer the boil to a large serving platter, and drizzle with melted butter. Garnish with fresh parsley and lemon wedges.
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Notes

• I highly recommend using Diamond Crystal kosher salt; if you only have Morton's kosher salt, reduce the volume by half (use 1.5 teaspoons) to avoid an overly salty broth.
• The Old Bay seasoning contains oil-soluble flavor compounds that dissolve beautifully in the fat rendered from the andouille sausage, infusing the potatoes far better than water alone.
• Do not add the shrimp at the beginning of the cook cycle; they will turn into rubbery, dry nuggets if cooked for more than 20 minutes.
• After a day in the fridge, the potatoes will absorb even more of the spicy broth, making them taste even better the next day, though the shrimp may tighten up slightly when reheated.
• Opt for wild-caught, shell-on large shrimp if possible, as the shells protect the delicate meat from cooking too quickly and add extra depth to the steaming liquid.

Serving Suggestions

To complete this classic Southern feast, serve it hot right out of the cooker with these perfect accompaniments:

• Warm, crusty French bread to soak up the seasoned butter.
• A side of classic Cornbread & Black Eyed Peas for a hearty, comforting meal.
• A crisp, refreshing Watermelon Feta Salad to balance the spicy heat.
• Extra lemon wedges and a bottle of hot sauce for guests who like an extra kick.
• A cold, refreshing beverage to wash down the rich spices.

Storage and Reheating

Store leftovers carefully.

Keep any remaining shrimp, potatoes, and sausage in an airtight container in the refrigerator for up to two days. Bear with me here: you want to keep a little bit of the cooking liquid in the container so the potatoes do not dry out and turn chalky.

When you are ready to reheat, avoid the microwave at all costs because it will instantly overcook the shrimp.

Instead, gently warm the leftovers in a skillet over medium-low heat with a splash of water and a pat of butter until heated through. This gentle method preserves the delicate protein matrix of the shrimp while keeping the potatoes beautifully moist.

Ingredient Substitutes

If you need to swap things out based on what is in your pantry, here are the best tested substitutions:

1. Andouille Sausage: Swap with smoked kielbasa or chorizo if you prefer a milder or different smoky profile.
2. Old Bay Seasoning: Use a custom blend of cajun seasoning, celery salt, and paprika if you cannot find the classic blue tin.
3. Red Potatoes: Yukon Gold potatoes work beautifully as they hold their shape well without turning to mush.
4. Fresh Corn: Frozen corn on the cob can be used in a pinch; just thaw it slightly before adding to the slow cooker.

Gather your favorite people, spread some parchment paper over the table, and dive into this messy, buttery, absolutely perfect feast that brings all the joy of a summer boil without any of the outdoor sweat.