Preheat oven to 250°F .
Rub the pork shoulder with the sugar and salt, making sure to cover all sides evenly.
Place the pork shoulder on a roasting rack in a roasting pan and place in the preheated oven. Roast for 3 hours or until an internal temperature of 145°F is reached.
Remove from oven and let rest for 15 minutes before slicing into thick slices.
Heat a large skillet over medium-high heat and add enough oil to coat the bottom of the pan. When hot, add the sliced pork shoulder and sear each side for about 2 minutes or until golden brown and crispy. Serve immediately with your favorite accompaniments!.