Slow-Cooker Herb Butter Cajun Shrimp Boil Step-by-step instructions

Before you start

Before starting, ensure the shrimp are peeled and deveined, and pat them dry with paper towels. Halve the corn cobs crosswise and scrub the potatoes.

If making the parsley-garlic scampi butter from scratch, combine 6 tablespoons softened butter, 2 minced garlic cloves, 2 tablespoons chopped parsley, 1 teaspoon lemon zest, and a pinch of salt. Measure the white wine. Have all ingredients ready at the slow cooker, as the assembly takes just a few minutes.

Instructions

Layer and Season

1. 1Layer the Ingredients
   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.
   Look for The shrimp form a single layer at the bottom, with corn and potatoes nestled around them.
   Tip Cut the corn cobs in half crosswise so they fit neatly in the slow cooker.
2. 2Add the Butter and Wine
   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.
   Look for The butter pats sit on top of the corn and potatoes, and the wine pools at the bottom.
   Tip If the butter is very cold, let it soften at room temperature for 15 minutes before adding.

At the end of this phase, the slow cooker contains a neat arrangement of shrimp at the bottom, corn and potatoes nestled around them, and pats of butter on top. The wine is poured around the edges, and the scene looks vibrant and promising.

The ingredients are raw but well-distributed, ensuring even cooking. Before moving on, make sure the butter is evenly distributed and the wine hasn't washed it off the top.

Slow-Cook to Perfection

3. 3Slow-Cook the Boil
   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.
   Look for The butter melts into a golden sauce, and the liquid gently bubbles around the edges.
   Safe temperature 145°F (63°C) internal temperature (shellfish)
   Tip If the potatoes are larger, cut them into quarters to ensure they cook in the same time as the shrimp.

After 3 hours on low, the slow cooker emits a fragrant steam infused with garlic, herbs, and wine. The butter has melted into a rich, golden sauce that coats the shrimp and vegetables. The shrimp are pink and opaque, the potatoes are fork-tender, and the corn is tender. The liquid is gently bubbling around the edges. The dish looks like a rustic, comforting feast ready to be served.

Serve and Enjoy

4. 4Serve the Boil
   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.
   Look for The shrimp are pink and curled, the potatoes yield easily to a fork, and the sauce is thick and glossy.
   Tip For a more rustic presentation, serve directly from the slow cooker with the sauce on the side.

The shrimp, corn, and potatoes are lifted out with a slotted spoon, leaving behind the flavorful sauce. The platter is piled high with glistening seafood and vegetables, and the sauce is spooned over the top. The colors are vibrant—pink shrimp, bright yellow corn, and golden potatoes. The dish is ready to be enjoyed immediately, with rice and lemon wedges on the side.

Common mistakes

One common mistake is lifting the lid during cooking, which releases heat and extends the cooking time. Another is overcooking the shrimp—since they cook quickly, check them at the 2.5-hour mark if your slow cooker runs hot.

Avoid using frozen shrimp without thawing, as they can release excess water and dilute the sauce. Also, be careful not to oversalt, as the butter may already contain salt. If the sauce seems thin at the end, let it cook uncovered for an additional 15 minutes to reduce slightly.

How to tell it’s done

The shrimp are done when they are opaque and firm to the touch, with an internal temperature of 145°F (63°C). They should curl slightly and have a pinkish hue. The potatoes should be fork-tender, meaning a fork inserts easily with little resistance.

The corn should be tender but still slightly crisp. The sauce should be well combined and glossy, with the butter fully melted and the wine integrated. Taste a piece of potato to check for seasoning; add salt and pepper if needed.

• Shellfish: 145°F (63°C) in the thickest part