Slow Cooker Herb Butter Seafood Boil

This slow cooker seafood boil brings together sweet snow crab, plump jumbo shrimp, smoky andouille sausage, and tender baby potatoes in a rich garlic-herb butter sauce.

The hands-off method lets the slow cooker do all the work, turning simple ingredients into a restaurant-quality feast. Perfect for a busy weeknight or a casual weekend gathering, this one-pot meal is as impressive as it is easy.

A seafood boil is a beloved tradition, but it often involves a large pot and a messy stovetop. This version simplifies everything by using a slow cooker. You simply layer the ingredients, dot with butter, pour in wine, and let the machine simmer everything to perfection.

The result is a fragrant, buttery dish that tastes like it took hours of effort—but really, it just takes a few minutes of prep. Serve it straight from the crock for a fun, communal meal.

Ingredients

Why this recipe works

The slow cooker's gentle, even heat is ideal for seafood. It poaches the shrimp and crab in the butter-wine mixture, keeping them moist and tender without the risk of overcooking that can happen on a stovetop. The low temperature also allows the flavors of the sausage, garlic, and herbs to meld into the sauce, creating a deeply savory base.

Cooking everything together in one pot means the potatoes absorb the aromatic liquids as they soften, while the seafood stays separate and delicate.

The butter and wine form a light emulsion that coats each bite, and the sausage adds a smoky richness that balances the sweetness of the crab. This method is forgiving and hands-off, making it nearly impossible to fail.

Notes and substitutions

Snow crab clusters are typically sold precooked and frozen; using them straight from the freezer is fine, but you may need to add 30 minutes to the cooking time.

Jumbo shrimp are the star here—look for raw, wild-caught shrimp with the shells on for maximum flavor. If you prefer, you can use extra-large shrimp and adjust the cooking time slightly.

The parsley-garlic scampi butter is the flavor backbone. If you don't have it on hand, mix softened butter with minced garlic, chopped parsley, and a pinch of salt. The white wine adds acidity and depth; a dry Sauvignon Blanc works beautifully. If you avoid alcohol, substitute seafood stock with a squeeze of lemon.

• snow crab clusters: lump crab meat (add during the last 30 minutes to avoid overcooking) or extra shrimp
• dry white wine: seafood stock or chicken broth (use 1/2 cup plus 1 tablespoon lemon juice)
• parsley-garlic scampi butter: 6 tablespoons unsalted butter mixed with 2 minced garlic cloves and 2 tablespoons chopped fresh parsley
• baby potatoes: halved red potatoes or Yukon Gold potatoes cut into 1-inch chunks

Equipment

• 6-quart slow cooker (Crockpot)
• Slotted serving spoon
• Cutting board
• Chef's knife
• Measuring cups
• Measuring spoons