1In 12-inch skillet, heat 1 tablespoon of the oil over medium-high heat. Add leeks; cook 3 to 5 minutes, stirring frequently, until tender. Remove leeks from skillet; set aside.
2Sprinkle both sides of pork chops with salt and pepper. In same skillet, heat remaining 1 tablespoon oil over medium-high heat. Add pork; cook 5 to 6 minutes, turning once, until golden brown on each side. Spoon leeks over pork. Pour beer around pork. Heat to boiling; reduce heat to low. Cover; simmer 45 to 50 minutes or until pork is tender. Remove pork from skillet; cover to keep warm.
3In small bowl, stir together flour and 1/4 cup hot juices from skillet. Pour mixture into skillet; cook over medium heat 5 to 6 minutes, stirring constantly with whisk, until gravy is thickened and bubbly.
4Serve gravy over pork chops.