Garlic Parmesan Chicken Spaghetti in Spicy Cajun Cream Sauce

Indulgent, smoky, and packed with bold Southern flavor, this Garlic Parmesan Chicken Spaghetti combines tender, seasoned chicken strips with al dente pasta folded into a rich, velvety Cajun garlic-cream sauce.

Master Recipe Overview

Active Prep Time	Cook Time	Total Time	Yield	Difficulty
15 minutes	20 minutes	~35 minutes	4–6 servings	Easy / Comfort Classic

🍝 Printable Recipe Card

Culinary Science & Emulsion Dynamics

   [ Sear Chicken Strips in Butter/Oil ] ──► Maillard Fond Forms on Skillet Bottom
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                                                    ▼
   [ Sauté Garlic & Deglaze Broth ]     ──► Releases Flavorful Fond into Liquid Base
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                                                    ▼
   [ Heavy Cream + Starch Water Emulsion ] ──► Binds Cream & Parmesan into Silky Sauce

Starchy Pasta Water Seal: Adding a splash of starchy pasta water to the heavy cream emulsion binds the butter fat and aged Parmesan proteins, preventing the sauce from breaking or becoming greasy.
Building Deep Fond Flavor: Searing the chicken seasoned with paprika and Cajun spices creates a caramelized fond at the bottom of the skillet. Deglazing with chicken broth lifts these savory browned bits right into the cream sauce.

Complete Ingredients List

For the Chicken & Pasta:

2 large boneless, skinless chicken breasts, sliced into thin strips
12 oz (340 g) spaghetti
1 tablespoon extra-virgin olive oil
4 tablespoons salted butter, divided (2 tbsp for searing, 2 tbsp for sauce)
5 cloves garlic, minced
1 tablespoon Cajun or Creole seasoning blend (adjust for spice level)

½ teaspoon smoked paprika
½ teaspoon onion powder
½ teaspoon salt & black pepper (to taste)

For the Spicy Cajun Cream Sauce:

½ cup (120 ml) chicken broth or stock (for deglazing)
1 cup (240 ml) heavy cream or double cream
¾ cup (75 g) freshly grated Parmesan cheese
1 can (10 oz / 280 g) diced tomatoes with green chilies (or diced fire-roasted tomatoes), drained
½ cup reserved starchy pasta cooking water
2 tablespoons fresh parsley, finely chopped (for garnish)
Red pepper flakes or cayenne pepper (optional, for extra heat)

Step-by-Step Instructions

Phase 1: Cook Pasta & Sear Chicken

Boil Spaghetti: Bring a large pot of salted water to a boil. Cook 12 oz spaghetti until al dente according to package directions. Reserve ½ cup of starchy pasta water right before draining, then set cooked pasta aside.

Season Chicken: Toss sliced chicken strips with 1 tbsp Cajun seasoning, ½ tsp smoked paprika, ½ tsp onion powder, salt, and pepper in a bowl until evenly coated.
Sear Chicken: Heat 1 tbsp olive oil and 2 tbsp butter in a large, deep skillet over medium-high heat. Add chicken strips in a single layer and cook for 5 to 7 minutes, turning once, until cooked through and golden brown. Transfer chicken to a plate and cover to keep warm.

Phase 2: Simmer Cajun Sauce & Toss

Sauté Garlic: Reduce heat to medium. Add remaining 2 tbsp butter and 5 cloves minced garlic to the same skillet. Sauté for 1 minute until highly fragrant, scraping up browned bits from the pan bottom.

Deglaze & Simmer: Pour in ½ cup chicken broth to deglaze the pan, simmering for 2 minutes until reduced by half.
Build Cream Sauce: Reduce heat to low, stir in 1 cup heavy cream and drained diced tomatoes. Simmer gently for 3 to 4 minutes until warm. Gradually whisk in ¾ cup grated Parmesan cheese until smooth and melted into a velvety sauce.
Toss & Combine: Add cooked spaghetti and reserved chicken back into the skillet. Toss continuously for 2 minutes, splashing in reserved pasta water as needed to loosen the sauce until every strand is coated.

Garnish & Serve: Remove from heat, garnish with chopped fresh parsley and extra Parmesan cheese, and serve hot!

❓ Frequently Asked Questions (FAQ)

1. How can I make this dish less spicy?

Use mild Cajun seasoning, swap the tomatoes with green chilies for plain diced fire-roasted tomatoes, and omit extra red pepper flakes.

2. Can I use a different pasta shape?

Yes! Penne, fettuccine, or rigatoni work brilliantly because their ridges capture the thick Cajun cream sauce well.

Storage & Reheating Instructions

Storage: Keep leftovers in an airtight container in the refrigerator for up to 3 to 4 days.
Reheating: Reheat gently in a skillet over low heat with a splash of milk or broth to restore the cream sauce texture without separating.

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