Add seasoning, be generous
Brown/cook aggressively- put pressure cooker on saute and pour oil
Place oxtails, brown each side for 3-4 minutes. Don’t bunch them up together, cook in batches if necessary
Remove oxtail
Add tomato paste + brown sugar to the pot. Cook for 90 seconds until paste darkens
Add 1 1/2 cups of water to the pot and scrape the bottom
Return the oxtail. Pressure cook on high for 45 min, natural release for 15-20 min
Now for the sauce - remove the oxtail, put the cooker on saute for ~20 min. Should come out thick and glossy.
Taste, add more salt if necessary