Slow-Cooker Chili Lime Seafood Boil

This slow-cooker seafood boil is the ultimate dump-and-go dinner. Snow crab clusters, jumbo shrimp, smoky Andouille sausage, and baby potatoes simmer low and slow in a glossy chili-lime butter until everything is tender and infused with flavor.

The result is a bubbling, fragrant feast that looks like you spent hours on it – but the Crockpot does all the work. Serve it straight from the pot with rice and lemon wedges for a meal that's equal parts impressive and effortless.

Seafood boils are usually reserved for backyard gatherings with huge pots and hours of attention. This slow-cooker version flips the script: simply layer the seafood, sausage, and potatoes in the Crockpot, pour over a warm chili-lime butter, and let it cook on low until everything is tender and juicy.

The butter melts into a glossy sauce that coats every bite, while the crab and shrimp stay moist and sweet. It's a complete meal in one pot, perfect for busy weeknights or casual entertaining with minimal cleanup.

Ingredients

Why this recipe works

The slow cooker creates a gentle, moist heat that cooks the seafood and vegetables evenly without drying them out. Unlike a high-heat boil, the low temperature lets the crab and shrimp absorb the chili-lime butter as they cook, resulting in deeply flavorful, succulent meat. The butter also emulsifies with the natural juices from the seafood, creating a rich, silky sauce that clings to every ingredient.

Layering the ingredients in the order the video shows – seafood first, then sausage and potatoes – ensures that the denser vegetables sit on top where they cook through while the delicate seafood stays protected below.

The sausage releases its smoky fat into the butter, seasoning the entire dish as it simmers. This hands-off method means you can walk away and let the slow cooker do the work, then come back to a fully cooked, restaurant-quality meal.

Notes and substitutions

Snow crab clusters are typically sold precooked and frozen; they just need to be heated through in the slow cooker. If using fresh raw crab, adjust the cooking time and ensure the meat reaches 145°F (63°C). Jumbo shrimp are ideal because they hold up well to the long cooking time – smaller shrimp may overcook. For the best texture, choose shrimp that are peeled and deveined, with tails on or off as preferred.

Smoked Andouille sausage adds authentic Cajun flavor, but any smoked sausage like kielbasa works. Baby potatoes are great because they cook quickly and absorb the butter sauce; if using larger potatoes, cut them into chunks.

The chili-lime seasoning can be found in the spice aisle – if unavailable, combine chili powder, lime zest, and a pinch of salt. Fresh cilantro is stirred into the butter at the end for a bright, herbal note.

• snow crab clusters: king crab legs or Dungeness crab clusters
• chili-lime seasoning: 2 tsp chili powder plus 1 tsp lime zest and 1/2 tsp salt
• smoked Andouille sausage: smoked kielbasa or chorizo
• baby potatoes: Yukon Gold potatoes cut into 1-inch chunks

Equipment

• 6-quart slow cooker
• Large slotted spoon
• Cutting board
• Chef's knife
• Measuring cups and spoons
• Small saucepan