Cajun Blackened Salmon with Creamy Gulf Shrimp Skillet in One Pan

Blackened salmon is one of those dishes that looks dramatic and cooks fast. Thick fillets develop a dark, spicy crust in a hot cast iron skillet, while shrimp and crisp-tender peppers and celery simmer beside them in a golden cream sauce. Two proteins, one pan, and a dinner that feels like a restaurant plate.

This dish brings together two classic Gulf flavors in a single skillet. Thick salmon fillets are seasoned generously with Cajun spice and seared until they form a dark, blackened crust on both sides. The same buttery pan then becomes the base for peeled shrimp, finely diced red and yellow bell peppers and celery.

Heavy cream is poured in and simmered until it thickens into a golden, creamy sauce, and hard parmesan and cheddar are stirred through for richness. The finished plate features the salmon in the center, surrounded by pink shrimp in an orange-tinted sauce, finished with fresh parsley. Everything happens in one cast iron skillet, so cleanup stays simple and the flavors build on each other.

Ingredients

Why this recipe works

Blackened cooking relies on a very hot, heavy pan and a generous coat of spice. Cast iron holds heat evenly, so the Cajun seasoning toasts and darkens into a crust rather than steaming on the surface. Searing the salmon first also leaves browned bits and spiced butter in the pan, and those drippings give the cream sauce a depth that plain butter could not supply.

The cream sauce works because the vegetables and shrimp cook in the fat before the cream goes in. The peppers and celery soften in the seasoned butter, and the shrimp releases a little sweetness into the pan.

When heavy cream simmers over that base, it reduces slowly and picks up color and flavor. Stirring in the grated parmesan and cheddar at the end lets the cheese melt into a smooth, glossy coating instead of clumping or turning grainy.

Notes and substitutions

Choose thick, skin-removed salmon fillets so the outside can char while the center stays moist and tender. Thin fillets overcook before the crust forms.

Peeled and deveined shrimp keep the skillet step quick, and removing the tails makes the dish easier to eat from the plate. Buy cheeses in blocks and grate them yourself, because pre-shredded cheese contains anti-caking agents that can make the sauce less smooth.

You need a 12-inch cast iron skillet for even heat and a sear that spreads across all four fillets. A box grater makes fine, fluffy cheese shreds that melt quickly. Use a chef's knife and a cutting board for the peppers and celery, and tongs to turn the salmon without tearing the crust.

If Cajun seasoning is not on hand, a blend of paprika, garlic powder, dried thyme, oregano, cayenne and black pepper works well. Half-and-half can replace heavy cream, but it thickens more slowly, so simmer it a few minutes longer and keep the heat steady.

• heavy cream: half-and-half for a lighter sauce that thickens more slowly and may need a few extra minutes of simmering
• Cajun seasoning: homemade blend of paprika, garlic powder, dried thyme, dried oregano, cayenne and black pepper
• hard parmesan cheese: pre-grated parmesan, though freshly grated melts more smoothly

Equipment

• 12-inch cast iron skillet
• box grater
• cutting board
• chef's knife
• tongs
• wooden spoon