Cut the beef brisket into 2-inch pieces. Pat dry well. Salt and pepper on all sides.
6 lbs beef brisket
Heat your pressure cooker on Sauté. Add a little oil and sear the beef in batches until deeply browned on all sides.
2 tbsp neutral oil
Remove excess oil from the pot (leave the browned bits - thats all flavor).
Add the rest of the ingredients.
½ cup water, ¼ cup soy sauce, ¼ cup rice vinegar, ¼ cup brown sugar, 4 tbsp sesame oil, 3 tbsp of tomato paste, 3- inch ginger, 4 cloves of garlic
Return the beef to the pot and toss to coat evenly.
Seal the lid and pressure cook on High for 90 minutes.
Natural release for 15 minutes, then carefully vent.
Optional but recommended: reduce the sauce and add cornstarch slurry to make it thicker and more glossy.
Serve with rice or mashed potatoes and your favourite vegetables.