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–+ servings
Buttermilk Alfredo Sauce served over pasta on dinner plate.

Buttermilk Alfredo Sauce

Arlene Mobley - Flour On My Face
Make restaurant-style buttermilk Alfredo sauce at home with this quick and easy recipe! Made with only a few ingredients, this rich & creamy sauce is perfect for any pasta dish. In less than thirty minutes you can serve this delicious main dish.
5 from 1 vote
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Prep Time 15 minutes
Cook Time 10 minutes
Total Time 25 minutes
Course Main Dish
Cuisine Italian
Servings 6 Servings
Calories 362 kcal

Ingredients  

  • 3 tablespoons unsalted butter
  • 3 tablespoons all-purpose flour
  • 1 ½ cups whole milk
  • ½ cup cultured buttermilk
  • 1 ½ cups finely shredded real Parmesan cheese (divided)
  • 1 teaspoon ground black pepper
  • ½ teaspoon salt
  • 1 teaspoon dried or fresh minced parsley
  • ½ teaspoon red pepper flakes (optional)
  • 10 whole fresh basil leaves (optional)
  • 8 ounces Penne Pasta (cooked and drained)
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Instructions 

  • Cook the pasta following the directions on the package. Once done drain and rise with cold water. Drain well and set aside until needed.
  • In a large skillet over medium heat melt the butter. Add the flour and whisk until creamy and lump free.
  • Slowly drizzle the milk into the flour and butter whisking until smooth and creamy. Once lump free pour the buttermilk in and whisk until the buttermilk is blended in.
  • Add 1 cup of finely grated parmesan cheese, ground pepper, salt, parsley and red pepper flakes while whisking until the cheese has melted.
  • Continue to whisk the sauce until boiling. As the buttermilk alfredo sauce comes to a boil it will thicken. Once thick turn the heat off or remove the skillet from the burner.
  • Add the cooked pasta to the skillet with the hot sauce and toss to coat with the sauce.
  • Season with salt and black pepper to taste. Add more red pepper flakes and parsley to the alfredo pasta. Toss until the pasta is coated with the sauce.
  • Sprinkle the remaining Parmesan cheese over the top and serve.
  • Serve with crusty bread and a salad.
  • Makes 8 servings.

Recipe Expert Tips

What else can be added to this pasta sauce?
  • Meats: Add thin slices of grilled chicken or steak. Sliced and cooked Italian sausage would taste great in this pasta dish.
  • Vegetables: Toss a handful of fresh Spinach leaves into the skillet with the hot alfredo sauce. Cut steamed broccoli florets into bite size pieces and toss it in.
  • Herbs: Garnish with fresh basil leaves or parsley.
  • Sauté garlic with the butter.
Pro Cooking Tips
  • To ensure a smooth texture, it's important to melt the butter and whisk the flour in completely and gradually add in the liquids.
  • Whisking the sauce constantly while adding in the cheese will help create a smooth and creamy consistency.
  • The Parmesan cheese must melt completely into the sauce ingredients.

Nutrition

Serving: 1ServingCalories: 362kcalCarbohydrates: 37gProtein: 18gFat: 16gSaturated Fat: 9gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 0.2gCholesterol: 42mgSodium: 646mgPotassium: 357mgFiber: 2gSugar: 5gVitamin A: 2665IUVitamin C: 7mgCalcium: 477mgIron: 2mg
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