Mix the soy sauce and sugar with ½ cup of water.
Put the oil in a skillet and heat/brown the chops on both side. Remove the chops from the skillet. Stir the onions into the skillet and cook them until the edges are brown. Return the chops to the skillet with the onions. Then pour the soy sauce/sugar mixture over the chops and cook slowly for at least 30 minutes. Turn the chops to color them evenly.