Brown beef for 2 mins on all sides, in batches if needed, seasoning with salt and pepper. Remove to a plate.
2 pounds beef stew meat, Salt and pepper
Melt the butter in the pot. Add the onions and saute them for 2-3 minutes. Stir in mushrooms and cook for 2-3 more minutes until they begin to brown and release their liquid. Add garlic and saute for 30 seconds, then press cancel.
Secure and seal the lid. Cook on Manual High for 15 minutes, allowing a 5 minute natural pressure release.
Carefully remove the lid. Remove 3 tablespoons of broth from the pot and whisk it into the sour cream to temper it, then stir the mixture back into the pot.
⅓ cup sour cream
Optional: Add in the egg noodles, mix, then close your Instant Pot lid for about 10 minutes, letting them cook in the sauce on residual heat. Spoon into bowls and enjoy!
This nutrition information is based on the exact products I used in this recipe. Brands and sizes of products could alter exact nutrition and should always be calculated independently.