Description

This Blackened Steak and Shrimp Alfredo is a decadent and flavorful pasta dish combining tender blackened sirloin steak and perfectly seasoned shrimp in a creamy homemade Alfredo sauce. Penne pasta provides the perfect base for this rich, cheesy sauce infused with bold blackened seasoning and a touch of garlic and onion. Garnished with fresh parsley, this recipe is a quick yet impressive meal ideal for dinner parties or a comforting weeknight treat.

Ingredients

Scale

Pasta

8 ounces penne pasta

Shrimp

1 pound large shrimp, raw, deveined, tail removed
1 teaspoon blackened seasoning
1 tablespoon vegetable oil

Steak

1 pound top sirloin steak, cut into 1-inch cubes
1 teaspoon blackened seasoning
¼ cup (½ stick / 57 g) unsalted butter

Sauce

1 small yellow onion, diced (about ½ cup)
2 teaspoons garlic, minced
2 cups (476 g) heavy whipping cream
2 cups (200 g) parmesan cheese, freshly grated
1 tablespoon blackened seasoning
½ teaspoon kosher salt
½ teaspoon black pepper
parsley, chopped for garnish

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Instructions

Cook Pasta: Bring a large pot of salted water to a boil over medium-high heat. Add penne pasta and cook until al dente according to package directions. Reserve 1 cup of pasta water, then drain the pasta and set aside.
Cook Shrimp: Season the shrimp evenly with 1 teaspoon blackened seasoning. Heat 1 tablespoon vegetable oil in a large 13-inch skillet over medium heat until hot. Add shrimp and cook for 1-2 minutes on each side until pink and cooked through. Transfer shrimp to a plate and tent to keep warm.
Cook Steak: Season steak cubes evenly with 1 teaspoon blackened seasoning. Increase heat to high in the same skillet. Add ¼ cup unsalted butter and allow it to melt and start to bubble. Place steak cubes in the skillet and cook for 1-2 minutes on each side until nicely browned on the outside but still pink inside. Transfer steak to the plate with shrimp and tent to keep warm.
Make Sauce: Reduce heat to medium. Add diced onion to the skillet and cook for 3-5 minutes until softened. Add minced garlic and cook for 1 minute until fragrant. Pour in 2 cups heavy whipping cream, ¼ to ½ cup reserved pasta water, and 2 cups freshly grated parmesan cheese. Stir in 1 tablespoon blackened seasoning, ½ teaspoon kosher salt, and ½ teaspoon black pepper. Continue stirring until the cheese melts and the sauce thickens slightly.
Toss Pasta in Sauce: Add the cooked penne pasta into the skillet with the sauce. Toss to coat evenly, adding additional pasta water as needed to achieve desired sauce consistency.
Serve: Top the pasta with the cooked shrimp and steak cubes. Garnish with chopped parsley and serve immediately while hot and creamy.

Notes

Blackened seasoning can be store-bought or homemade with paprika, cayenne, garlic powder, onion powder, thyme, oregano, salt, and pepper.
Ensure not to overcook the steak to keep it tender and juicy; aim for medium rare to medium.
Reserve pasta water is key to loosening the Alfredo sauce if it becomes too thick.
You can substitute penne with other pasta shapes like fettuccine or rigatoni depending on preference.
Leftovers can be stored covered in the refrigerator for up to 2 days and reheated gently on the stove.

Nutrition

Serving Size: 1 serving (approximately 1/4 of recipe)
Calories: 720 kcal
Sugar: 3 g
Sodium: 620 mg
Fat: 48 g
Saturated Fat: 26 g
Unsaturated Fat: 20 g
Trans Fat: 0.5 g
Carbohydrates: 38 g
Fiber: 2 g
Protein: 42 g
Cholesterol: 210 mg