Step 1
Convey a kettle of water to a boil. To a small pot set over medium-high warmth, add ½ cup of the sugar and prepare dinner, swirling continuously, till dissolved and caramel coloured, about 10 minutes. Add ¼ cup boiling water and prepare dinner, swirling, till the liquid is homogenous, about 1 minute. Put aside to chill barely, then scrape into the bowl of a meals processor together with the remaining sugar, the shallots, lemongrass, oil, soy sauce, fish sauce, black pepper, and garlic. Course of till easy, 30–45 seconds.
Step 2
To a 9-by-13-inch baking dish, add the pork chops. Pour over the sauce, cowl, and refrigerate no less than 1 hour (or as much as 10).
Step 3
Set a big grill pan over excessive warmth. When it begins to smoke, add sufficient chops to fill the pan with out crowding, and grill, turning as soon as, till charred in spots and cooked by means of, about 2 minutes per aspect. Switch to a plate and tent with foil; repeat with the remaining chops. Serve instantly with the rice and nước chấm.