Slow-Cooker Chili Lime Butter Lobster Tails

This slow cooker seafood dinner brings together tender lobster tails and jumbo shrimp in a zesty chili lime butter sauce with sweet bell peppers and onions.

Just dump everything in the slow cooker, pour over the butter, and let it simmer while you go about your day. The result is a restaurant-quality meal that feels indulgent but requires almost no effort.

Lobster tails and shrimp might sound like a special-occasion dish, but this recipe makes them an easy weeknight win. The slow cooker does all the work, gently poaching the seafood in a buttery sauce infused with chili and lime.

The vegetables soften and soak up the flavors, creating a rich, aromatic base. Serve it over rice or with crusty bread to soak up every last drop of the sauce.

Ingredients

Why this recipe works

Slow cooking is the secret to this dish. The gentle, low heat of the slow cooker keeps the lobster tails and shrimp remarkably tender, preventing them from turning tough or rubbery.

Unlike high-heat methods, the slow cooker allows the seafood to cook evenly and absorb the flavors of the chili lime butter without any constant attention.

The chili lime butter acts as both a cooking medium and a sauce. As it melts and mingles with the seafood juices, it creates a glossy, flavorful glaze that coats every piece. The bell peppers and onions cook down into a soft, sweet bed that complements the rich seafood, making every bite balanced and satisfying.

Notes and substitutions

Use the best seafood you can find. Look for lobster tails that are firm and have a sweet, clean scent. If using frozen tails, thaw them overnight in the refrigerator.

Jumbo shrimp (16-20 per pound) work best here because they hold up well during the long cooking time. Peel and devein them before adding to the slow cooker.

Chili lime seasoning is a convenient shortcut, but you can easily make your own by combining chili powder, lime zest, and a pinch of salt. For a milder heat, reduce the seasoning to 1 tablespoon. If you prefer a spicier dish, add a pinch of cayenne or a chopped jalapeño along with the vegetables.

• chili lime seasoning: 1 tbsp chili powder plus 1 tsp lime zest and 1/2 tsp salt
• sweet Vidalia onion: yellow onion or shallots
• jumbo shrimp: large shrimp, adjust cooking time to 2 hours
• unsalted butter: salted butter, reduce added salt in seasoning

Equipment

• 6-quart slow cooker
• small saucepan
• slotted spoon
• measuring cups and spoons
• cutting board
• chef's knife