Dinner

Cajun Alfredo Sauce (Big FLAVOR!) Recipe

BySarah Summers January 20, 2026January 20, 2026

Introduction

Cajun Alfredo Sauce is a rich and creamy twist on the classic Italian favorite, bursting with bold spices and smoky flavors. This sauce is perfect for adding a flavorful kick to your pasta dishes, making every bite exciting and satisfying.

This dish shows a bowl of creamy pasta with two main layers: the bottom layer is light yellow cooked pasta coated in a smooth creamy orange sauce, and the top layer is sprinkled with grated white cheese and chopped green parsley. On one side of the bowl, there are fresh green microgreens, and a half slice of yellow lemon sits tucked behind the greens. The white bowl sits on a round wooden board with a handle, placed on a white marbled surface with some green leaves in the background. photo taken with an iphone --ar 4:5 --v 7

Ingredients

½ cup unsalted butter
1 ½ cup heavy cream
2 tablespoons Cajun seasoning (homemade or store bought)
½ teaspoon kosher salt (omit if your seasoning blend contains salt)
1¾ cup freshly grated parmesan cheese
Zest of 1 lemon
3 tablespoons smoked paprika
1 tablespoon onion powder
1 tablespoon garlic powder
2 teaspoon kosher salt
1 teaspoon ground white pepper
1 teaspoon ground mustard
1 teaspoon dried oregano
1 teaspoon dried thyme
1 teaspoon cayenne pepper
½ teaspoon dried basil

Instructions

Step 1: Melt the butter in a large skillet over low heat until melted and it begins to froth, showing white bubbles on top.
Step 2: Stir in the heavy cream and Cajun seasoning. Add salt if needed. Bring to a simmer and cook on low for 5 to 6 minutes.
Step 3: Remove the pan from heat, add the lemon zest. Gradually stir in the parmesan cheese until it is completely melted and the sauce is smooth. Adjust salt to taste.
Step 4: Add cooked pasta to the pan and toss to coat evenly, or serve the sauce alongside as desired.

Tips & Variations

For extra depth, try using freshly ground Cajun seasoning made from the listed spices.
Adjust the cayenne pepper amount to control the heat level.
Add cooked shrimp or grilled chicken for a hearty protein boost.
Use freshly grated parmesan for the best melting and flavor.

Storage

Store leftover Cajun Alfredo sauce in an airtight container in the refrigerator for up to 3 days. Reheat gently on low heat while stirring to prevent the cheese from separating. If the sauce thickens too much, add a splash of cream or milk to loosen it.

How to Serve

A white bowl filled with creamy orange-yellow fettuccine pasta covered with a smooth sauce, topped with grated cheese and sprinkled with chopped green herbs. On one side of the pasta, there is a small bunch of fresh green microgreens, and a wedge of lemon leans against the bowl’s edge. The bowl sits on a wooden board placed over a white marbled surface, with some green leafy herbs blurred in the background. photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I make the Cajun seasoning from scratch?

Yes, using the spices listed in the ingredients—smoked paprika, onion powder, garlic powder, salt, white pepper, ground mustard, oregano, thyme, cayenne pepper, and basil—you can mix your own Cajun seasoning blend.