Wash the oxtail with water, vinegar, and lime juice. Drain well and pat dry.
Mix the oxtail with salt, oxtail/all-purpose seasoning, garlic, ginger, browning, brown sugar and Scotch bonnet pepper. Ensure it's evenly coated. Let it marinate for at least 1 hour if possible.
Heat oil in a pressure cooker on high heat.
Add the oxtail and sear until all sides are browned.
Add 3 cups of water, close the pressure cooker lid, and cook on high pressure for 30–40 minutes.
Let the pressure cooker cool, then carefully remove the lid. Check that the oxtail is tender and falling off the bone.
Return the pot to medium-high heat. Add onion, thyme, scallion, tomato, bell pepper, carrot, butter beans and ketchup.
Cover with a regular pot lid and simmer for another 30 minutes, to allow the flavors to blend and the sauce to thicken.
Once the oxtail is simmering, taste the sauce occasionally and adjust the seasoning as needed.
Ensure the sauce has thickened to your liking, then serve hot with your favorite side.