Trim excess fat from the edges of the pork chops. Sprinkle each with some of the 1 teaspoon salt and pepper. Season 2 cups flour with the remaining 1 tablespoon salt and pepper. Dredge chops in the flour until coated on all sides, shaking off excess flour.
Pour the vegetable oil in a deep, heavy skillet, such as cast iron, over medium-high heat. When the oil begins to shake slightly, add as many pork chops as will fit without crowding. Fry, turning once, until well-browned on both sides, about 5 minutes. Remove chops to a plate and repeat with remaining chops.
Pour off all but 1/4 cup drippings from the skillet. Reduce the heat to medium and add onions, green peppers and celery. Cook until brown and soft, about 10 minutes. Sprinkle 2 tablespoons flour over the vegetables and bottom of the skillet. Cook, stirring, until flour is golden brown. Slowly pour in 2 cups water. Stir, then cook until thickened.
Place pork chops in a Dutch oven or divide between two skillets. Top with the gravy and vegetables. Cover tightly and cook over low heat until pork chops are cooked through, about 15 minutes.
Makes: 4