Easy Instant Pot Alfredo Sauce with Fettuccine
Instant Pot Alfredo Sauce with Fettuccine is a delicious one-pot meal of fettuccine pasta in a cheesy, creamy, and flavorful sauce.
Servings 4 servings
- 1 1/2 cups chicken broth or veggie broth
- 1 cup evaporated milk
- 1/2 cups heavy cream
- 1 teaspoon minced garlic
- 1 teaspoon dried thyme
- 1 teaspoon Italian seasoning mix
- 1/4 teaspoon red pepper flakes or less
- 1/4 teaspoon kosher salt
- 1/8 teaspoon ground black pepper
- 8 oz baby Bella mushrooms, sliced optional
- 1/2 lb dry fettuccine noodles broken in half
- 1 cup mascarpone cheese room temperature
- 1 cup parmesan cheese, shredded
- 1 tablespoon cornstarch
- 1 tablespoon water
Using a kitchen scale, measure the pasta to make sure you are not using more.
Add the following ingredients to the Instant Pot: broth, evaporated milk, garlic, thyme, Italian seasoning, red pepper flakes, salt, pepper, and sliced mushrooms (if using). Stir to combine.
Break the fettuccine noodles in half and add them to the pot. Distribute evenly on top, do not stir, just gently press to soak them into the liquid.
Take the time to check if you have a bunch of noodles stuck together, gently soak them in the liquid, otherwise, they will end up glued together when cooked.
Pour the cream over the noodles.
Cover and seal the lid. Make sure the valve points to Sealed.
Change the setting to Manual or Pressure Cook and adjust the time to 5 minutes.
Once Instant Pot beeps to show that it's done, wait 5 minutes (Natural Pressure Release), and after that do a quick release, by changing the position of the valve to Vent.
Carefully remove the lid and gently stir the noodles.
Let them sit in the sauce uncovered for about 1-2 minutes.
Add parmesan cheese and mascarpone, gently stir until fully combined.
The sauce will thicken more as it cools off. However, if you would prefer a thicker sauce, mix cornstarch and water in a small bowl until fully combined.
Select Sauté, add the cornstarch slurry to the Instant Pot, stir and simmer for 2 minutes. The sauce will thicken more as it cools off.
To thin out the sauce, add more milk or cream, and stir to combine. Simmer for 1-2 minutes.
Calories: 831kcal | Carbohydrates: 78g | Protein: 44g | Fat: 37g | Saturated Fat: 21g | Cholesterol: 137mg | Sodium: 981mg | Potassium: 983mg | Fiber: 2g | Sugar: 11g | Vitamin A: 1150IU | Vitamin C: 2.6mg | Calcium: 782mg | Iron: 4.9mg