1poundbrown button mushroomshalved or quartered if large
1/4 - 1/3cupcream cheesesour cream OR heavy cream
Brown onions and pork: Set instant pot to sauté. Add butter and cook onions until softened. Push to one side and add chops to brown. Season with salt and pepper as they cook.
Add sauce: Switch off instant pot. Add stock, soy sauce, mustard, and dried herbs, scraping the browned bits from the bottom of the instant pot. Stir in the mushrooms.
Pressure cook: Close instant pot and set valve to sealing. Choose "pressure cook" on high for 8 minutes. After cooking time is up, do a natural pressure release for 5 minutes, then manually release remaining pressure and open.
Thicken: For a thicker sauce, remove chops form instant pot and cover to keep warm. Set instant pot to sauté and simmer sauce for a few minutes. If desired, add a slurry of cornstarch and 1-2 tablespoons water.
Add cream: Switch off instant pot and let it cool down for a few seconds. Stir in sour cream. Serve sauce over chops.