
This easy Cajun blackened shrimp recipe delivers bold, smoky, perfectly charred shrimp in under 15 minutes using a screaming-hot cast iron skillet and a homemade spice blend.

If you have ever ordered blackened Cajun shrimp at a restaurant and thought, "I need to figure out how to make this at home," this is your recipe. We are talking deeply spiced, slightly charred, impossibly juicy shrimp with a smoky Cajun crust that forms in just a few minutes over high heat. It is fast, bold, and genuinely one of the most satisfying weeknight meals you can put on the table.
This blackened shrimp recipe is everything a great easy blackened shrimp dish should be: a short ingredient list, a homemade spice blend that beats anything from a packet, and a technique that delivers restaurant-quality results in your own kitchen. Whether you serve it over creamy pasta, pile it onto rice, or tuck it into tacos, this recipe earns a permanent spot in your rotation.
Blackening is a Cajun cooking technique made famous by Chef Paul Prudhomme in New Orleans in the 1980s. It involves coating protein in a spiced butter mixture and cooking it in a screaming-hot cast iron skillet. The intense heat causes the spices to form a dark, almost charred crust, which gives blackened dishes their signature smoky depth.
It is not the same as burnt. The crust should be deeply colored and fragrant, with the spices caramelized into the surface of the shrimp rather than raw or ashy. When done right, it is one of the most flavorful things you will ever eat.
Chef's Tip: The number one rule of blackening is a dry surface. Pat your shrimp as dry as possible before seasoning. Any moisture will create steam in the pan and prevent that gorgeous crust from forming.
The heart of any great blackened Cajun shrimp recipe is the spice blend. This homemade version uses pantry staples to create something far more balanced and flavorful than store-bought blackening seasoning.
Here is what goes into it:
The blend takes about 60 seconds to make and can be stored in a jar for up to two weeks. Once you make it, you will start putting it on chicken, fish, and vegetables too.
For a truly authentic blackened shrimp cast iron experience, the pan you use matters more than almost any other variable in this recipe. A well-seasoned cast iron skillet retains heat at an even, intensely high temperature that a nonstick or stainless pan simply cannot match. That sustained heat is what creates the crust.
Using high-quality butter alongside a good neutral oil also elevates the final result, giving you rich flavor with a high enough smoke point to handle the heat.
This is one of those recipes where a few small habits make a big difference:
Chef's Tip: Open a window or turn on your range hood before you start. Blackening creates smoke, and that is a sign things are going exactly right.
This recipe is incredibly versatile. Here are some of the best ways to use it:
Ready to get cooking? Here is everything you need laid out in one place:

This easy Cajun blackened shrimp recipe delivers bold, smoky, perfectly charred shrimp in under 15 minutes using a screaming-hot cast iron skillet and a homemade spice blend.
Pat the shrimp completely dry with paper towels. This step is critical for getting a proper blackened crust rather than steaming the shrimp.
In a small bowl, combine the smoked paprika, garlic powder, onion powder, dried oregano, dried thyme, cayenne pepper, black pepper, and kosher salt. Stir until evenly blended.
Place the dry shrimp in a large bowl and drizzle with olive oil. Toss to coat, then sprinkle the spice blend over the shrimp and toss again until every piece is evenly coated.
Heat a large cast iron skillet over high heat for 2 to 3 minutes until it is very hot and just beginning to smoke. Add 2 tablespoons of butter and swirl to coat.
Add the shrimp in a single layer. Do not overcrowd the pan. Cook undisturbed for 2 minutes until a dark, charred crust forms on the bottom.
Flip each shrimp and cook for another 1 to 2 minutes until the shrimp are opaque throughout and lightly charred on the second side.
Reduce the heat to medium-low. Add the remaining 1 tablespoon of butter and the minced garlic to the pan. Stir quickly for about 30 seconds until the garlic is fragrant.
Remove from heat immediately. Transfer to a serving plate, spoon any pan juices over the top, garnish with fresh parsley, and serve with lemon wedges.
Leftover blackened Cajun shrimp store well in an airtight container in the refrigerator for up to 2 days. To reheat, warm them gently in a skillet over medium-low heat with a small pat of butter. Avoid the microwave if you can, as it tends to make shrimp rubbery.
Cold leftovers are also fantastic straight from the fridge over a salad or tucked into a wrap for an easy lunch the next day.
However you serve them, this blackened shrimp recipe is the kind of dish that disappears fast. Do not be surprised when everyone asks you to make it again next week.