Blackened Steak and Shrimp Alfredo
This Blackened Steak and Shrimp Alfredo combines bold Cajun-spiced proteins with a rich, velvety cream sauce over fettuccine for a restaurant-worthy dinner you can make at home in under an hour.
The Steak and Shrimp Pasta Recipe Your Dinner Table Has Been Waiting For
There are some meals that feel genuinely special the moment they hit the table, and this Blackened Steak and Shrimp Alfredo is exactly that kind of dinner. You get bold, smoky, Cajun-spiced steak and perfectly seared shrimp layered over silky fettuccine coated in a rich Parmesan cream sauce. It is the kind of steak and shrimp pasta that earns requests, compliments, and empty plates.
This is not a complicated recipe. It does not require a culinary degree or a professional kitchen. What it does require is a screaming hot skillet, a well-seasoned spice blend, and a little patience while that Alfredo sauce comes together into something genuinely crave-worthy.
Why This Cajun Steak and Shrimp Alfredo Pasta Works So Well
The genius of this dish is contrast. You have the deep, charred crust of the blackened steak against the gentle sweetness of seared shrimp, all brought together by a cream sauce that is rich without being heavy. The Cajun spice blend, built from smoked paprika, cayenne, garlic powder, and dried herbs, does not just add heat. It adds dimension to every bite.
The technique here matters, too. Blackening is not the same as burning. It is a deliberate, high-heat crust that develops when seasoned protein hits a very hot pan and caramelizes into something deeply savory and aromatic. That same skillet, with all its beautiful browned bits, becomes the foundation for the Alfredo sauce. Nothing goes to waste.
Chef's Tip: Do not skip resting the steak. Five minutes under a loose foil tent lets the juices redistribute so every slice stays tender and succulent rather than running dry onto the cutting board.
Choosing the Right Ingredients for Steak and Shrimp Alfredo Pasta
For the steak, sirloin is the sweet spot between flavor and value in this dish. It is beefy, it sears beautifully, and it does not overwhelm the shrimp. Ribeye works if you want extra richness. Flank steak is a leaner option that still takes the blackening seasoning like a dream, as long as you slice it thinly.
For the shrimp, go with large or jumbo shrimp, peeled and deveined. Frozen shrimp that has been thawed properly works just as well as fresh and is often more affordable. For the pasta, fettuccine is the classic choice because its wide, flat surface clings to the Alfredo sauce rather than letting it slide off.
And here is the single most important ingredient note: grate your Parmesan fresh from a block. Pre-shredded cheese has anti-caking coatings that prevent smooth melting and will leave you with a grainy, broken sauce. A microplane or box grater and a wedge of good Parmigiano-Reggiano is the difference between a sauce that looks like a restaurant dish and one that looks like a mistake.
Having the right tools in your kitchen makes a real difference when you are cooking something like this Cajun steak and shrimp Alfredo pasta. The right cast iron skillet, a quality microplane, and fresh pantry staples are what separate a good result from a great one.
Building the Blackening Spice Blend
The blackening seasoning in this recipe is a classic Cajun-style blend you can mix together in under two minutes:
- Smoked paprika for deep color and earthy warmth
- Garlic powder and onion powder for savory base notes
- Cayenne pepper for heat (adjust up or down freely)
- Dried oregano and thyme for herbaceous depth
- Cracked black pepper and kosher salt to tie it all together
This same blend works on chicken, salmon, and even vegetables, so consider doubling or tripling the batch and keeping it in a sealed jar. It keeps well for up to three months.
Note: If you are sensitive to heat, start with just 0.25 tsp of cayenne. You can always add more at the table with a pinch or a few dashes of hot sauce.
The Alfredo Sauce: Simple, Silky, and Impossible to Resist
A true Alfredo sauce does not need flour, cream cheese, or a complicated roux. This version builds on heavy cream, minced garlic, chicken broth, and freshly grated Parmesan. The broth deglazes the pan after the proteins cook, capturing all of those smoky, spiced drippings and folding them directly into the sauce.
The key to a smooth sauce is patience over low heat. Add your Parmesan gradually, stir constantly, and resist the temptation to crank up the heat when it seems slow. High heat is what causes cream sauces to break. Low and slow is what gives you that glossy, coating consistency that clings to every strand of fettuccine.
Keep a measuring cup of pasta water nearby. The starchy water is your secret weapon for loosening the sauce to the perfect consistency without diluting the flavor.
Ready to bring this stunning steak shrimp Alfredo pasta to life? Here is everything you need:
Blackened Steak and Shrimp Alfredo
This Blackened Steak and Shrimp Alfredo combines bold Cajun-spiced proteins with a rich, velvety cream sauce over fettuccine for a restaurant-worthy dinner you can make at home in under an hour.
Ingredients
- 12 oz fettuccine pasta
- 1 lb sirloin steak, about 1 inch thick, patted dry
- 1 lb large shrimp, peeled and deveined, tails on or off
- 2 tsp smoked paprika
- 1 tsp garlic powder
- 1 tsp onion powder
- 1/2 tsp dried oregano
- 1/2 tsp dried thyme
- 1/2 tsp cayenne pepper, reduce to 0.25 tsp for milder heat
- 1/2 tsp black pepper, freshly cracked
- 1 tsp kosher salt, divided
- 3 tbsp unsalted butter, divided
- 2 tbsp olive oil, divided
- 5 garlic cloves, minced
- 2 cups heavy cream
- 1 1/2 cups freshly grated Parmesan cheese, plus more for serving
- 1/2 cup chicken broth, low sodium
- 2 tbsp fresh parsley, chopped, for garnish
Instruction
Bring a large pot of heavily salted water to a boil. Cook the fettuccine according to package directions until al dente. Reserve 0.5 cup of pasta water before draining, then set the pasta aside.
While the pasta cooks, combine the smoked paprika, garlic powder, onion powder, oregano, thyme, cayenne, black pepper, and 0.5 tsp of the kosher salt in a small bowl to make the blackening spice blend.
Pat the steak completely dry with paper towels. Coat both sides generously with half of the blackening spice blend, pressing it firmly into the meat.
Toss the shrimp with the remaining blackening spice blend and 0.5 tsp kosher salt until evenly coated.
Heat 1 tbsp olive oil and 1 tbsp butter in a large cast iron skillet over high heat until the pan is smoking hot. Add the steak and sear for 3 to 4 minutes per side for medium-rare, or longer to your preferred doneness. Transfer to a cutting board, tent loosely with foil, and let rest for 5 minutes.
Reduce the skillet heat to medium-high. Add 1 tbsp olive oil and cook the shrimp in a single layer for 1 to 2 minutes per side until pink and curled. Remove shrimp from the pan and set aside.
Reduce heat to medium and add the remaining 2 tbsp of butter to the same skillet. Add the minced garlic and cook for 60 seconds, stirring constantly, until fragrant.
Pour in the chicken broth and scrape up any browned bits from the bottom of the pan. Let it simmer for 1 minute, then pour in the heavy cream.
Simmer the cream sauce over medium heat for 4 to 5 minutes, stirring often, until it begins to thicken slightly. Reduce the heat to low and stir in the Parmesan cheese a handful at a time until fully melted and the sauce is smooth.
Add the drained fettuccine to the sauce and toss well to coat. If the sauce is too thick, loosen it with splashes of the reserved pasta water until it reaches a silky, coating consistency.
Slice the rested steak thinly against the grain. Arrange the pasta in bowls or on a platter, then top with sliced steak and cooked shrimp. Garnish with fresh parsley and extra Parmesan. Serve immediately.
Equipment
- Large pot
- Cast iron skillet or heavy-bottomed pan
- Cutting board
- Sharp chef's knife
- Tongs
- Small mixing bowl
- Wooden spoon or silicone spatula
- Colander
- Measuring cups and spoons
- Box grater or microplane
Notes
Serving, Storing, and Variations
To serve: Plate the fettuccine first, then layer the sliced steak over the top and nestle the shrimp alongside. A shower of fresh parsley and extra Parmesan over everything makes it look as impressive as it tastes.
Leftovers keep well in an airtight container in the fridge for up to three days. Reheat gently on the stovetop with a splash of cream or broth. The pasta will have absorbed much of the sauce overnight, so expect to add a bit more liquid to bring it back to its original silkiness.
Variations to try:
- Swap the fettuccine for penne or rigatoni if that is what you have on hand
- Add sliced bell peppers or baby spinach to the sauce for extra color and vegetables
- Use andouille sausage in place of steak for a different take on Cajun steak and shrimp pasta
- Stir in a tablespoon of sun-dried tomato paste for a slightly richer, more complex sauce
However you serve it, this blackened steak and shrimp Alfredo is the kind of recipe that earns a permanent spot in your dinner rotation. Bold, comforting, and genuinely delicious from the first bite to the last.
