Combine 1/3 of the chopped onion, escallion, garlic, pimento and thyme in a blender. Add 1/2 cup water, 1/4 cup Grace Vegetable Oil, cover and blend for about 30 seconds.
Place the pork loin in a large bowl; add the blended seasoning along with the scotch bonnet pepper, black pepper, salt and soy sauce. Rub seasonings into the meat; cover and allow to marinate for about 1 hour.
Heat a skillet over medium heat. Add 2 tablespoons Grace Vegetable Oil and the Grace Hello Margarine and stir until the margarine melts.
Add the marinated pork loin and sear, turning the meat every 10 minutes until a light brown colour develops.
Arrange 1/3 of the remaining seasoning in a roasting pan and add 1 cup water. Transfer the seared pork loin from the skillet to the roasting pan and place in a pre-heated oven 180°C (350°F). Roast for about 40 minutes turning frequently until done. Remove from the oven and allow to cool for 20 minutes.
Heat the skillet; add the remaining seasoning and saute for about 1 minute. Add the dripping from the roasting pan and bring to a simmer.
Dissolve cornstarch with 1/4 cup water and add to the simmering mixture, stirring constantly until the mixture thickens.
To Serve: Spoon sauce on the base of a serving plate. Slice the pork loin against the grain of the meat and arrange overlapping slices over the sauce. Serve with Rice and Peas and a cooked vegetable salad.
To Sear: To brown meat on both sides to seal in the juices and to develop colour.