Dinner · Part 3 of 3: Tips & recipe card

Slow-Cooker Herb Butter Cajun Shrimp Boil Tips, FAQ & printable recipe

Name: Slow-Cooker Herb Butter Cajun Shrimp Boil
Prep time: 15 min
Cook time: 3 h
Total time: 3 h 15 min
Cuisine: Cajun
Ingredients: 2 lb jumbo shrimp, peeled and deveined; 4 ears sweet corn, halved; 1 1/2 lb baby red bliss potatoes; 6 tbsp parsley-garlic scampi butter, softened; 1/2 cup dry white wine

By Clara Weller · Oct 29, 2026

Slow cooker filled with shrimp, corn, and potatoes in herb butter sauce

Prep: 15 min
Cook: 3 h
Total: 3 h 15 min
Serves: 4

Tips for success

For the best texture, avoid stirring the slow cooker during cooking, as this can break up the shrimp and potatoes. Instead, let the ingredients sit undisturbed so they cook evenly and retain their shape. If you prefer a thicker sauce, remove the solids and simmer the liquid on the stovetop for a few minutes to reduce before serving.

This recipe is forgiving—if you need to keep it warm for a while, switch the slow cooker to the 'keep warm' setting after the cooking time is up.

The shrimp may continue to cook slightly, but they will stay moist for up to an hour. For a more intense Cajun flavor, add a teaspoon of Cajun seasoning to the butter mixture before adding it to the slow cooker.

Variations

Spicy Andouille Sausage: Add 8 ounces sliced andouille sausage along with the potatoes. The sausage will infuse the dish with smoky, spicy flavor. Cook as directed; the sausage is fully cooked, so it just needs to heat through.
Lemon-Herb Twist: Increase the lemon flavor by adding 2 lemon slices to the slow cooker before cooking. Replace the white wine with chicken broth and add an extra tablespoon of lemon juice to the butter mixture. This brightens the dish and complements the seafood.
Cajun-Spiced Version: Stir 1 tablespoon of Cajun seasoning into the softened butter before adding it to the slow cooker. This adds a warm, spicy kick to the sauce. Adjust the amount to your heat preference, and serve with extra hot sauce on the side.
Vegetarian Delight: Omit the shrimp and increase the potatoes and corn to 2 pounds each. Add 1 cup of vegetable broth instead of white wine. The cooking time remains the same; the vegetables will be tender and flavorful.

Storage and make-ahead

Fridge: Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently before serving.
Freezer: Freeze the cooked shrimp boil in a freezer-safe container for up to 2 months. Thaw overnight in the refrigerator before reheating.
Reheat: Reheat in a saucepan over medium-low heat, adding a splash of broth or water to restore the sauce's consistency.

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or on the stovetop, adding a splash of water or broth to loosen the sauce. The shrimp may become slightly firmer upon reheating, but the flavors will remain delicious.

You can prep the ingredients ahead of time: peel the shrimp, cut the corn, and scrub the potatoes. Store them separately in the refrigerator for up to 24 hours.

Assemble the slow cooker just before cooking, or place all ingredients in the insert and refrigerate overnight—just add an extra 30 minutes to the cooking time if starting from cold.

Serving ideas

Serve this shrimp boil directly from the slow cooker for a casual, communal meal. Provide a slotted spoon for guests to help themselves, and have plenty of napkins on hand.

The dish pairs beautifully with steamed white rice, which soaks up the buttery sauce, and lemon wedges for a bright squeeze of acidity. A crisp green salad or crusty bread would also be excellent on the side.

For a more formal presentation, arrange the shrimp, corn, and potatoes on a large platter and drizzle with the sauce. Garnish with extra chopped parsley and lemon wedges.

This dish is substantial enough to stand alone, but you can also offer it with coleslaw or grilled vegetables. The flavors are bold and satisfying, making it a crowd-pleaser for any occasion.

Frequently asked questions

Can the shrimp be added later to prevent overcooking?

Yes, if you prefer, you can add the shrimp during the last 30 minutes of cooking. However, with the low heat and the amount of liquid, the shrimp will remain tender even when added at the beginning. If using larger shrimp, they will cook perfectly in the 3-hour window. For smaller shrimp, consider adding them later.

What can be used instead of white wine?

If you prefer not to use alcohol, substitute the white wine with an equal amount of chicken or vegetable broth. To mimic the acidity of wine, add a teaspoon of lemon juice or white wine vinegar. The flavor will be slightly different but still delicious.

Can this recipe be made on the stovetop?

Absolutely. In a large pot, combine all ingredients and bring to a simmer over medium heat. Cover and cook for 15-20 minutes, or until the potatoes are tender and the shrimp are opaque. Stir occasionally to prevent sticking. This method is quicker but requires more attention.

How do you know when the shrimp are fully cooked?

Shrimp are done when they turn pink and opaque, and the internal temperature reaches 145°F (63°C). They should be firm to the touch but still moist. Avoid overcooking, as shrimp can become rubbery. If you're unsure, cut one open—the flesh should be pearly white with no translucent spots.

Can the leftovers be reheated?

Yes, leftovers can be reheated in the microwave or on the stovetop. Add a splash of water or broth to keep the sauce from drying out. Reheat gently until warmed through, but be careful not to overcook the shrimp, as they will become tough. Leftovers are best within 3 days.

Recipe card

Slow-Cooker Herb Butter Cajun Shrimp Boil

Prep 15 minCook 3 hTotal 3 h 15 minServes 4

Ingredients

2 lb jumbo shrimp, peeled and deveined
4 ears sweet corn, halved
1 1/2 lb baby red bliss potatoes
6 tbsp parsley-garlic scampi butter, softened
1/2 cup dry white wine

Instructions

Place the peeled and deveined jumbo shrimp in the bottom of a 6-quart slow cooker. Arrange the halved sweet corn cobs and baby red potatoes around and on top of the shrimp, distributing them evenly.
Dot the top of the seafood and vegetables with the parsley-garlic scampi butter, placing the pats evenly over the surface. Pour the dry white wine around the edges of the slow cooker, being careful not to wash the butter off the top.
Cover the slow cooker and cook on low for 3 hours, or until the potatoes are fork-tender and the shrimp are opaque and cooked through. Avoid lifting the lid during cooking to keep the heat steady.
Use a slotted spoon to lift the shrimp, corn, and potatoes out of the slow cooker and onto a serving platter or individual plates. Spoon some of the herb butter sauce over the top. Serve hot, with steamed rice and lemon wedges on the side if desired.

Contains: crustaceans, milk, sulfites

Estimated nutrition per serving

Calories: 450
Protein: 35 g
Carbohydrates: 40 g
Fat: 18 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.