01 -
Combine 1 1/2 cups water, French onion soup, cream of chicken soup, and Au Jus gravy mix in the Instant Pot insert. Whisk thoroughly until well blended.
02 -
Place the cubed steaks into the pot, ensuring each piece is coated with the prepared gravy mixture.
03 -
Secure the lid and set the valve to 'Sealing.' Cook on Manual High Pressure for 20 minutes. Allow 5 to 10 minutes for the pot to come to pressure before timing. If a burn notification appears, wait a few minutes for cooking to commence or carefully release pressure, scrape the bottom, add a bit more water, and retry.
04 -
Perform a quick release by carefully turning the valve to 'Venting.' Exercise caution as steam will release rapidly. Once all steam has escaped and the lid can be opened safely, remove the cubed steaks and set aside.
05 -
Turn the Instant Pot to the sauté function. In a small vessel, mix 1/4 cup water with 3 tablespoons cornstarch to create a slurry. Gradually whisk the slurry into the hot gravy in the pot and continue stirring until the sauce thickens.
06 -
Return the cubed steaks to the pot to warm through in the thickened gravy. Turn off the Instant Pot and serve immediately, ideally over mashed potatoes or preferred side.