Cajun Chicken Alfredo combines juicy, spice-rubbed chicken with tender fettuccine and a rich garlic-Parmesan cream sauce. The Cajun seasoning adds smoky heat and savory flavor, while the Alfredo sauce mellows the spice with butter, cream, and finely grated Parmesan.
The chicken cooks in the same skillet used for the sauce, so the browned seasoning left in the pan adds extra flavor to the Alfredo. Resting the chicken briefly before slicing helps it stay juicy, while reserved pasta water keeps the sauce smooth and glossy.
Why This Recipe Works
- Thin chicken cutlets cook evenly and brown quickly without drying out in the center.
- Cajun seasoning on the chicken creates flavorful browned bits that become part of the Alfredo sauce.
- Heavy cream provides enough richness to help the Parmesan melt into a smooth sauce.
- Reserved pasta water loosens the sauce while its starch helps it cling to the fettuccine.
- Adding Parmesan over low heat reduces the chance of clumping or turning grainy.
Equipment Needed
- 5- to 6-quart pot
- Colander
- 12-inch heavy-bottomed skillet
- Tongs
- Whisk
- Fine grater
- Chef’s knife and cutting board
- Instant-read meat thermometer
Ingredients List
For the Cajun Chicken
- 1 1/2 pounds (680 g) boneless, skinless chicken breasts, sliced horizontally into 6 thin cutlets
- 2 tablespoons (18 g) salt-free Cajun seasoning, divided
- 1 teaspoon fine salt, divided
- 1/2 teaspoon ground black pepper
- 1 tablespoon (15 ml) olive oil
- 2 tablespoons (28 g) unsalted butter, divided
For the Alfredo Pasta
- 12 ounces (340 g) dried fettuccine
- 1 tablespoon fine salt, for the pasta water
- 4 garlic cloves, finely minced
- 1 1/2 cups (360 ml) heavy cream
- 1 cup (240 ml) reserved pasta cooking water, divided
- 1 1/2 cups (135 g) finely grated Parmesan cheese
- 1 tablespoon (15 ml) fresh lemon juice
Optional Garnishes
- 2 tablespoons (8 g) chopped fresh parsley, optional
- 1/4 cup (20 g) finely grated Parmesan cheese, optional
- Crushed red pepper flakes, optional
Ingredient Notes and Substitutions
- Chicken breasts: Thin chicken breast cutlets cook more evenly than thick whole breasts and develop a browned crust before the centers dry out. Boneless, skinless chicken thighs can be substituted in the same weight, though they may need a few extra minutes to reach 165°F (74°C).
- Cajun seasoning: A salt-free Cajun seasoning blend lets you control the salt separately. If using a commercial blend that contains salt, reduce or omit the added salt and adjust only after tasting.
- Heavy cream: Heavy cream gives Alfredo sauce its smooth, rich texture and is less likely to curdle than lower-fat dairy. Half-and-half can be substituted, but the sauce will be thinner and should be kept below a boil.
- Parmesan cheese: Finely grated Parmesan melts more smoothly than coarse or pre-shredded cheese. Pecorino Romano can be substituted, but it is sharper and saltier, so reduce added seasoning.
- Fettuccine: Fettuccine is wide enough to hold the creamy sauce well. Linguine or spaghetti can be substituted in the same weight, though cooking times may differ.
Step-by-Step Instructions
Step 1: Season the chicken
Pat the chicken cutlets dry with paper towels. Season both sides with 1 1/2 tablespoons of the Cajun seasoning, 3/4 teaspoon of the salt, and all of the black pepper.
Step 2: Cook the pasta
Bring a 5- to 6-quart pot of water to a rolling boil. Add 1 tablespoon fine salt and the fettuccine. Cook according to the package directions until al dente, usually 10 to 12 minutes.
Step 3: Reserve the pasta water
Before draining, scoop out 1 cup (240 ml) of the starchy pasta water. Drain the fettuccine without rinsing and set it aside.
Step 4: Heat the skillet
While the pasta cooks, heat the olive oil and 1 tablespoon (14 g) butter in a 12-inch skillet over medium-high heat.
Step 5: Sear the chicken
Add half of the chicken cutlets in a single layer. Cook for 3 to 4 minutes, until the underside is deeply golden and releases easily from the pan.
Step 6: Finish cooking the chicken
Turn and cook for another 2 to 4 minutes, until the thickest part reaches 165°F (74°C). Transfer to a clean plate. Repeat with the remaining chicken, adding the remaining 1 tablespoon (14 g) butter if needed.
Step 7: Rest the chicken
Let the chicken rest for 5 minutes while you prepare the Alfredo sauce.
Step 8: Cook the garlic
Reduce the skillet heat to medium-low. Add the garlic and cook for about 30 seconds, stirring constantly, until fragrant but not browned.
Step 9: Add the cream and seasoning
Pour in the heavy cream. Stir in the remaining 1/2 tablespoon Cajun seasoning and remaining 1/4 teaspoon salt. Bring to a gentle simmer and cook for 3 to 4 minutes.
Step 10: Add the Parmesan
Reduce the heat to low. Add the 1 1/2 cups (135 g) Parmesan in three additions, whisking until each portion melts before adding the next. Do not let the sauce boil.
Step 11: Loosen the sauce
Whisk in 1/2 cup (120 ml) of the reserved pasta water. The sauce should look smooth and glossy and be thick enough to coat a spoon while still flowing easily.
Step 12: Add the fettuccine
Transfer the drained pasta to the skillet and toss gently with tongs for 1 to 2 minutes. Add more reserved pasta water, a few tablespoons at a time, if the sauce becomes too thick.
Step 13: Finish with lemon
Remove the skillet from the heat and stir in the lemon juice. Taste before adding any additional seasoning because the Cajun blend and Parmesan both contribute salt.
Step 14: Slice the chicken
Cut the rested chicken across the grain into strips. The interior should be opaque and juicy with no translucent areas.
Step 15: Assemble and serve
Divide the Alfredo fettuccine among six plates. Arrange the Cajun chicken over the pasta and garnish with parsley, extra Parmesan, and crushed red pepper flakes as desired.
Storage, Freezing, and Make-Ahead Instructions
- Cool leftover Cajun Chicken Alfredo promptly and transfer it to an airtight container within 2 hours. Refrigerate for up to 4 days.
- For the best texture, store the chicken separately from the pasta when possible. Reheat the fettuccine gently in a covered skillet over low heat with 1 to 2 tablespoons (15 to 30 ml) of cream, milk, broth, or water. Stir frequently until the sauce loosens.
- Reheat the chicken separately or in the same skillet until it reaches 165°F (74°C).
- Freezing is not recommended because the cream-and-Parmesan sauce may separate and the pasta can become soft after thawing.
- For make-ahead preparation, slice and season the chicken up to 1 day in advance and refrigerate it in an airtight container. The Parmesan can also be grated ahead. Cook the pasta and make the Alfredo sauce shortly before serving.
FAQ
Can I make Cajun Chicken Alfredo ahead of time?
You can prepare and season the chicken and grate the Parmesan up to 1 day ahead. The finished Alfredo sauce has the smoothest texture when made shortly before serving.
How spicy is Cajun Chicken Alfredo?
The heat depends on the Cajun seasoning blend. Choose a mild blend for gentler heat, or add crushed red pepper or cayenne if you want a spicier dish.
Why did my Alfredo sauce turn grainy?
The sauce was probably too hot, or the Parmesan was added too quickly. Reduce the heat to low and add finely grated cheese gradually while whisking.
Can I use chicken thighs?
Yes. Boneless, skinless chicken thighs can replace the breasts in the same weight. Cook them until they reach 165°F (74°C).
Can I use another pasta?
Yes. Linguine, spaghetti, penne, or rigatoni can replace fettuccine in the same weight. Follow the package cooking time and reserve pasta water before draining.
Creamy Cajun Chicken Alfredo
Ingredients
Method
- Pat the chicken cutlets dry with paper towels: Season both sides with 1 1/2 tablespoons of the Cajun seasoning, 3/4 teaspoon of the salt, and all of the black pepper.
- Bring a 5- to 6-quart pot of water to a rolling boil. Add 1 tablespoon fine salt and the fettuccine. Cook according to the package directions until al dente, usually 10 to 12 minutes.
- Before draining, scoop out 1 cup (240 ml) of the starchy pasta water. Drain the fettuccine without rinsing and set it aside.
- While the pasta cooks, heat the olive oil and 1 tablespoon (14 g) butter in a 12-inch skillet over medium-high heat.
- Add half of the chicken cutlets in a single layer. Cook for 3 to 4 minutes, until the underside is deeply golden and releases easily from the pan.
- Turn and cook for another 2 to 4 minutes, until the thickest part reaches 165°F (74°C). Transfer to a clean plate. Repeat with the remaining chicken, adding the remaining 1 tablespoon (14 g) butter if needed.
- Let the chicken rest for 5 minutes while you prepare the Alfredo sauce.
- Reduce the skillet heat to medium-low: Add the garlic and cook for about 30 seconds, stirring constantly, until fragrant but not browned.
- Pour in the heavy cream: Stir in the remaining 1/2 tablespoon Cajun seasoning and remaining 1/4 teaspoon salt. Bring to a gentle simmer and cook for 3 to 4 minutes.
- Reduce the heat to low: Add the 1 1/2 cups (135 g) Parmesan in three additions, whisking until each portion melts before adding the next. Do not let the sauce boil.
- Whisk in 1/2 cup (120 ml) of the reserved pasta water. The sauce should look smooth and glossy and be thick enough to coat a spoon while still flowing easily.
- Transfer the drained pasta to the skillet and toss gently with tongs for 1 to 2 minutes. Add more reserved pasta water, a few tablespoons at a time, if the sauce becomes too thick.
- Remove the skillet from the heat and stir in the lemon juice. Taste before adding any additional seasoning because the Cajun blend and Parmesan both contribute salt.
- Cut the rested chicken across the grain into strips. The interior should be opaque and juicy with no translucent areas.
- Divide the Alfredo fettuccine among six plates: Arrange the Cajun chicken over the pasta and garnish with parsley, extra Parmesan, and crushed red pepper flakes as desired.
