In a large bowl, combine the first nine ingredients. Pour 1/2 cup marinade into a large resealable plastic bag; add the pork chops. Seal bag and turn to coat; refrigerate for at least 2 hours. Cover and refrigerate remaining coffee mixture until ready to cook.
For glaze, place remaining coffee mixture in a small saucepan. Bring to a boil; cook until liquid is reduced to about 1/2 cup.
Drain and discard marinade. Using long-handled tongs, dip a paper towel in cooking oil and lightly coat the grill rack. Grill chops, covered, over medium heat or broil 4 in. from the heat for 4-5 minutes on each side or until a meat thermometer reads 160°. Spoon glaze over chops. Yield: 4 servings.