Core apples, cutting to but not through bottom ends; arrange in a lightly greased 9-inch square baking dish.
Stir together pecans and next 3 ingredients; spoon into apples.
Bake, covered, at 375° for 45 minutes; uncover and bake 15 more minutes. Serve warm.
Note: Apples may be sliced and placed in a lightly greased 11- x 7-inch baking dish; spread pecan mixture over apple, and bake at 375º for 30 to 35 minutes.