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au gratin potatoes in the Instant Pot
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4.6 from 59 votes

Instant Pot Au Gratin Potatoes

Instant Pot Au Gratin Potatoes are a thinly sliced potato covered in a rich & creamy cheese sauce. Made in the Instant Pot, this side dish is done in about 15 minutes from start to finish! 
Course Instant Pot
Keyword au gratin, au gratin potatoes, au gratin potatoes recipe, instant pot, instant pot recipe, instant pot side dish
Prep Time 5 minutes
Additional Time 10 minutes
Total Time 15 minutes
Servings 4 -6 servings
Calories 381kcal
Author Karli Bitner


  • 5 medium potatoes peeled and thinly sliced
  • 1 cup chicken broth
  • 1/4 cup minced onion
  • 1 tsp dried minced garlic can substitute 4 fresh cloves
  • salt and pepper to taste
  • 1/2 cup evaporated milk can substitute heavy cream
  • 1 cup cheese I like to use half parmesan, half cheddar plus some for topping


  • Wash, peel and slice the potatoes. Slice the potatoes somewhere in between 1/8 and 1/4 of an inch thick.
  • Add the chicken broth, sliced potatoes, onion, garlic, salt and pepper to the Instant Pot.
  • Cook on Manual HIGH for 0 minutes. Quick release the pressure.
  • Preheat the oven to BROIL
  • Add the evaporated milk to the Instant Pot, stirring carefully.
  • Sprinkle the cheese into the Instant Pot, stir until the cheese has melted into and thickened the sauce.
  • Transfer potatoes and sauce into an oven safe dish
  • Sprinkle additional cheese on top, if desired.
  • Broil until the sauce is bubbling and the top is golden brown.
  • Best if the potatoes cool for about 10 minutes before serving.
  • Garnish with parsley, if desired.


0 minute cook time explained in post above.


Serving: 1g | Calories: 381kcal | Carbohydrates: 52g | Protein: 15g | Fat: 13g | Saturated Fat: 7g | Polyunsaturated Fat: 4g | Cholesterol: 41mg | Sodium: 572mg | Fiber: 5g | Sugar: 7g