Brown Oxtail: Brown marinated oxtail pieces in oil, then add marinade and water.
Add Spices: Add diced tomato, allspice, bay leaves, and ginger. Bring to a boil, then simmer.
Cook Oxtail: Braise oxtail for 2.5 hours, then add red beans, coconut milk, bell peppers, thyme, and scotch bonnet pepper. Cook for an additional 30 minutes.
Finish and Serve: Adjust seasoning, garnish with scallion, and serve with the sauce thickened to preference.