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+ servings
Alfredo Sauce made with half and half on a dinner plate with a slice of crusty bread, cloth napkin and fork

Alfredo Sauce With Half and Half Recipe

Arlene Mobley - Flour On My Face
Alfredo Sauce With Half and Half: Homemade Alfredo Sauce With Half and Half is easy to make and tastes delicious. This creamy thick homemade Alfredo sauce is perfect. The sauce is so thick it clings to the fettuccine noodles and has a great Parmesan cheese flavor. Only 25 minutes to make this delicious pasta meal.
5 from 18 votes
Prep Time 15 mins
Cook Time 10 mins
Total Time 25 mins
Course Condiment, Main Dish
Cuisine Italian
Servings 8 Servings
Calories 294 kcal


  • 4 tablespoons of butter
  • 3 tablespoons of all-purpose flour
  • 1 teaspoon ground black pepper
  • 1 teaspoon of salt
  • 2 cups half and half
  • 1 cup finely grated fresh Parmesan cheese plus more for serving optional
  • 8 oz. cooked fettuccine pasta noodles
  • dried parsley flakes optional
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Cook the pasta

  • Cook the fettuccine noodles in a pot of salted boiling water following the instructions on the box. 
  • Drain the pasta and run under cold water until cool. Drain well. Set aside while making the alfredo sauce.

Make the Alfredo Sauce

  • To make the Alfredo sauce melt the butter in a medium-size saucepan over medium heat.
  • Add the flour, salt, and pepper to the melted butter. 
  • Use a whisk to combine. Whisk until the lumps are gone and the flour mixture is smooth. Continue to whisk over heat until bubbling.
  • Slowly pour the half and half into the pot while whisking. Whisk until the flour mixture is completely mixed into the half and half with no lumps. Make sure to scrape the whisk into the edges of the pan where some of the flour and butter mixture may be sticking.
  • Constantly whisk the mixture until the sauce starts to thicken and comes to a boil. 
  • Remove the pot from the heat source once the Alfredo sauce has thickened. 
  • Add the shredded Parmesan cheese to the pot and whisk until the cheese is melted into the sauce.
  • Transfer the cooked fettuccine noodles into a serving bowl or large pan so you can mix the sauce into the noodles. 
  • Pour the thickened Alfredo made with half and half over the pasta.
  • Toss the pasta with the sauce until the fettuccine noodles are covered with Alfredo sauce.  
  • Sprinkle with a teaspoon of dried parsley flakes and stir the dried or fresh herb into the dish.
  • Transfer the Fettuccine Alfredo to a serving plate and sprinkle with parsley and more Parmesan cheese. 
  • Makes 4 servings. 



  • Cook the pasta before starting the Alfredo sauce.
  • If the sauce cools and thickens add a small amount of half and half to thin it.


Serving: 1Serving | Calories: 294kcal | Carbohydrates: 26g | Protein: 10g | Fat: 16g | Saturated Fat: 10g | Trans Fat: 1g | Cholesterol: 46mg | Sodium: 568mg | Potassium: 161mg | Fiber: 1g | Sugar: 1g | Vitamin A: 488IU | Vitamin C: 1mg | Calcium: 221mg | Iron: 1mg
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