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A close up view of fettuccine pasta heavily coated in a thick, glossy, creamy white Alfredo sauce in a shallow rustic ceramic bowl. (Homemade Alfredo Sauce)

Ultimate Homemade Alfredo Sauce (Rich, Creamy & Foolproof)

Discover the best Homemade Alfredo Sauce recipe. This guide creates a thick, glossy, and incredibly rich cream sauce using simple ingredients like heavy cream and real Parmesan. Perfect for coating fettuccine in under 20 minutes.
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Prep Time 5 minutes
Cook Time 15 minutes
Total Time 20 minutes
Servings: 4 people
Course: Dinner, Main Course
Cuisine: American, Italian
Calories: 785
Ingredients Equipment Method Notes

Ingredients
  

For the Alfredo Sauce & Pasta
  • 1 lb Fettuccine Pasta 450g
  • 1/2 cup Unsalted Butter 113g
  • 2 cups Heavy Cream 480ml
  • 4 cloves Garlic finely minced
  • 1 1/2 cups Parmesan Cheese 150g, finely grated from a block
  • 1/2 tsp Fine Sea Salt 3g, plus more for pasta water
  • 1/2 tsp Freshly Cracked Black Pepper 1g, to taste
  • 2 tbsp Fresh Parsley 8g, finely chopped

Equipment

  • 1 Large Pot or Dutch Oven
  • 1 Large Skillet or Sauté Pan
  • 1 Whisk
  • 1 Box Grater or Microplane

Method
 

Cook the Pasta
  1. Bring a large pot of water to a rolling boil. Add a generous amount of salt.
  2. Add the fettuccine and cook according to package directions until al dente.
  3. Just before draining, reserve at least 1 cup (240ml) of the starchy cooking water. Drain the pasta.
Make the Sauce
  1. In a large skillet over medium heat, melt the butter. Add the minced garlic and sauté for 30-60 seconds until fragrant.
  2. Pour in the heavy cream, whisk, and bring to a gentle simmer. Let it simmer for 3-4 minutes to thicken slightly.
  3. Reduce heat to low. Add the grated Parmesan in batches, whisking constantly until smooth. Season with salt and pepper.
Combine and Serve
  1. Add the drained fettuccine to the sauce. Add a splash of reserved pasta water and toss vigorously until every noodle is coated and the sauce is glossy.
  2. Serve immediately in warm bowls, garnished with fresh parsley and extra Parmesan cheese.

Notes

Grate Your Own Cheese. This is the most important tip. Pre-shredded cheese contains starches and celluloses that prevent it from melting smoothly. For a silky sauce, always start with a block of high-quality Parmesan.
Control Your Heat. The number one reason Alfredo sauce fails is because the heat is too high when the cheese is added. This causes the fats to separate, resulting in a greasy, grainy texture. Always add cheese on very low heat.
Don't Forget the Pasta Water. That starchy water is liquid gold. It's the key to creating an emulsified sauce that clings beautifully to the pasta instead of pooling at the bottom of the bowl.
Use Full-Fat Ingredients. This is a recipe for indulgence. For the best flavor and texture, use real butter and heavy whipping cream. Lower-fat substitutes will not produce the same rich, stable result.