In a small bowl, whisk together the brown sugar, minced onion, garlic powder and balsamic vinegar.
Place the pork roast into the electric pressure cooker insert with the hot water. and season with salt and pepper. Pour the sauce on and around the pork.
Steam valve: Sealing.
Cook on: Manual/High for 40 minutes. *Note: pressure cooking time for pork roasts and pork tenderloins can vary depending on how thick it is. I find 40 minutes to be just right for most!
Release: Natural or Quick.
Once finished cooking, shred the pork with 2 forks and mix into the sauce. Strain before serving.
Serve Instant Pot Balsamic & Brown Sugar Pulled Pork with chips and fruit.