For the green seasoning:
Prepare the green seasoning: Add all ingredients to a food processor. Blend, adding water a few tablespoons at a time, until you get a thick purée. (You’ll have 3 cups. Keep any extra in an airtight container in the refrigerator for 2 weeks.)
For the pepperpot
Season the meat with 2 cups green seasoning, 2 teaspoons salt and 1 teaspoon pepper. Marinate at room temperature for 1 hour or overnight in the refrigerator.
Heat the oven to 375 degrees. In a large Dutch oven over medium heat, add 2 tablespoons oil and brown the meat in batches, about 25 minutes for both sides. Transfer to a plate.
Add 1 tablespoon oil to the pan, if necessary. Add Scotch bonnets and onion; sauté until translucent, about 5 minutes. Add garlic and cook until fragrant, another 30 seconds.
Add in the cassareep, brown sugar, ginger, cloves, cinnamon sticks, orange peel, scallions and bay leaf. Add back the meat and the juices from the plate, and add water to cover the meat. Let come to a boil over high heat.
Cover the pot, transfer to the oven and cook, covered, for 2 to 2½ hours, until the meat is tender. Skim as much fat as possible from the top.
Remove the meat from the pot, and, once cool enough to handle, strain the liquid through a fine-mesh strainer set in another bowl.
Carefully add the reserved liquid back into the pot and bring to a boil.
Add cornstarch and 2 tablespoons water to a cup and mix well. Add the slurry into the pot and mix until thick enough to coat the back of a wooden spoon. (You may have to boil a bit longer to let the liquid reduce to this consistency.) Taste and readjust your seasoning with salt and pepper. Add the meat back to the pot.
Serve with thick sliced white bread, crusty bread, roti or rice.