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Overhead view of a pan filled with Creamy Fettuccine Alfredo with kitchen tongs.
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Olive Garden Alfredo Sauce

Make Olive Garden's Alfredo Sauce Recipe at home in just 20 minutes! Pair it with Fettuccine for an easy dinner idea the whole family will love!
Prep Time5 minutes
Cook Time15 minutes
Total Time20 minutes
Course: Main Course
Cuisine: Italian
Servings: 6
Calories: 624kcal
Author: Stephanie

Ingredients

  • 6 Tablespoons salted butter high quality
  • 1 Tablespoon garlic minced
  • 2 Tablespoons all-purpose flour
  • 1 ½ cups heavy cream
  • 1 ½ cups whole milk 1% or 2% can be used if needed
  • ½ cup Parmesan cheese grated and at room temperature
  • ½ cup Romano cheese grated and at room temperature
  • Salt and black pepper to taste
  • 1 lb. Fettuccine
  • Parsley to garnish

Instructions

  • Boil the fettuccine according to package instructions. As the water preheats, begin the sauce.
  • Melt the butter in a large saucepan over medium heat. Add the garlic and cook for one minute.
  • Whisk in the flour and cook for 1 minute, stirring continuously.
  • Add the heavy cream in splashes, stirring continuously. Add the milk in the same manner.
  • Bring to a gentle bubble, then reduce heat to low to bubble. It will continue to thicken as it simmers.
  • Slowly stir in the cheese. Taste and season with salt/pepper if desired.
  • Drain the pasta and carefully mix it into the sauce until well incorporated. The pasta will absorb the sauce and it will continue to thicken.
  • Garnish with chopped parsley and serve!

Notes

Note: You may be tempted to add more cheese to thicken to sauce, but it continues to thicken upon standing and even when added to the pasta.
For Saucier Pasta: Use 3/4 lb. pasta instead of a full pound.

Pro Tips for Reheating:

  • Alfredo sauce will thicken up and harden as it cools, but can be easily microwaved or slowly reheated on the stove top. Reheating in a makeshift double boiler is the best reheating method to restore it back to it's original form. 
  • Frozen Alfredo sauce should be thawed overnight in the fridge before heating.
  • If the sauce is too thick when reheated, add a splash of milk or chicken broth to thin it out.
  • Be sure to serve this with my Olive Garden Salad!
⭐This recipe is in The Cozy Cookbook on page 132!

Nutrition

Calories: 624kcal | Carbohydrates: 62g | Protein: 20g | Fat: 33g | Saturated Fat: 20g | Cholesterol: 153mg | Sodium: 399mg | Potassium: 357mg | Fiber: 3g | Sugar: 2g | Vitamin A: 925IU | Vitamin C: 2mg | Calcium: 347mg | Iron: 2mg