A white pasta bowl full of fettuccine alfredo with a piece of parsley on top for garnish, and a fork on the side.
Print Recipe
4.86 from 14 votes

Instant Pot Skinny Fettuccine Alfredo

Skinny Instant Pot Fettuccine Alfredo is rich and creamy, with a fraction of the calories of traditional alfredo. It's an easy instant pot pasta recipe that everyone is sure to love! 
Prep Time5 mins
Cook Time20 mins
Total Time25 mins
Course: Main Course
Cuisine: Italian
Servings: 4
Calories: 405kcal
Author: Lauren Allen


  • 8 ounces fettuccine noodles , broken in half
  • 1 teaspoon oil
  • 3 cloves garlic minced
  • salt and pepper
  • 2 1/2 cups low-sodium chicken broth (or vegetable broth)
  • 1 cup milk , skim or 1%
  • 3 teaspoons cornstarch
  • 1/2 teaspoon onion powder
  • 1/2 teaspoon dried basil
  • 1/2 teaspoon dried parsley flakes
  • 1 cup freshly grated parmesan cheese


  • Add oil to the IP and turn to saute. Once hot add garlic and stir for 10 seconds. Turn IP off. 
  • Add pasta and chicken broth, making sure the noodles are covered in the liquid.
  • Turn valve to sealed and cook on manual (high pressure) for 3 minutes. 
  • When the times beeps allow the pressure to naturally release for 6 minutes, before turning the valve to release remaining pressure and open the lid. 
  • Stir pasta, breaking up any pieces that have stuck together.
  • Stir the cornstarch and milk together until smooth. Add to the instant pot, along with the dry spices and parmesan cheese. Season with salt and pepper, to taste.
  • Turn Instant pot to saute setting and stir gently until the sauce just begins to thicken. Turn Instant Pot off. 
  • The sauce will thicken significantly as it cools, so allow it to cool for a few minutes before serving. You can add additional cheese, if needed, to thicken the sauce. 


Don't own an Instant Pot? Make this recipe in just one pan, on the stove-top, with this recipe


Calories: 405kcal | Carbohydrates: 48g | Protein: 22g | Fat: 13g | Saturated Fat: 6g | Cholesterol: 75mg | Sodium: 465mg | Potassium: 385mg | Fiber: 1g | Sugar: 4g | Vitamin A: 350IU | Vitamin C: 0.7mg | Calcium: 379mg | Iron: 1.7mg