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Cajun Alfredo Sauce Recipe

4.6 from 115 reviews

This Cajun Alfredo Sauce is a creamy, rich, and flavorful blend that combines classic Italian Alfredo with the bold, smoky spices of Louisiana Cajun seasoning. Made with butter, garlic, heavy cream, Parmesan cheese, and a mix of Cajun spices, this sauce is perfect for enhancing pasta, chicken, shrimp, or sausage dishes. Its versatility allows for easy adaptations including vegan, keto, and lighter versions, making it a beloved choice for any meal.

Ingredients

Scale

Base Ingredients

  • 4 tablespoons unsalted butter
  • 4 cloves garlic, minced
  • 2 cups heavy cream (or half-and-half for a lighter version)
  • 1 ½ cups freshly grated Parmesan cheese

Spices & Seasonings

  • 2 tablespoons Cajun seasoning
  • ½ teaspoon smoked paprika (optional)
  • ½ teaspoon freshly ground black pepper
  • ¼ teaspoon cayenne pepper (adjust to taste)
  • Salt, to taste (optional)

Optional Ingredients for Cooking Proteins

  • 2 tablespoons olive oil

Garnish

  • Fresh parsley, chopped

Instructions

  1. Prepare the base: In a large skillet, melt the unsalted butter over medium-low heat. Add the minced garlic and sauté gently until fragrant, about 1-2 minutes, ensuring not to burn the garlic.
  2. Blend in Cajun spices: Sprinkle in the Cajun seasoning, smoked paprika, black pepper, cayenne pepper, and salt if needed. Stir continuously for about 1-2 minutes to bloom the spices and prevent burning.
  3. Add cream and simmer: Pour in the heavy cream slowly while stirring, bringing the mixture to a gentle simmer over low to medium heat. Avoid boiling to prevent curdling.
  4. Incorporate Parmesan cheese: Gradually whisk in the freshly grated Parmesan cheese until the sauce becomes smooth, creamy, and thickened, about 3-5 minutes. If the sauce feels too thin, let it simmer a bit longer while stirring.
  5. Serve and garnish: Remove from heat. Pour the sauce over your choice of cooked pasta, chicken, shrimp, or sausage. Garnish with chopped fresh parsley before serving.

Notes

  • Use freshly grated Parmesan cheese for a silky, smooth texture—avoid pre-shredded cheese which may cause graininess.
  • Add spices gradually and adjust cayenne pepper to control heat level.
  • Keep the heat low to medium to avoid boiling the cream which prevents separation or curdling.
  • For vegan versions, substitute heavy cream with cashew cream or unsweetened coconut milk and parmesan with nutritional yeast.
  • To store, refrigerate in an airtight container for up to 3 days or freeze for 1-2 months; thaw overnight before reheating gently.
  • Reheat using low heat on stovetop, adding a splash of cream or milk to restore creaminess.
  • Pair especially well with fettuccine, penne, zoodles, rice, chicken, shrimp, or sausage.

Keywords: Cajun Alfredo Sauce, Creamy Cajun Sauce, Cajun Pasta Sauce, Spicy Alfredo, Cajun Cream Sauce, Cajun Seafood Sauce