Combine apples and cinnamon, spread over pastry evenly; then roll up as for jelly roll. Slice in 1½" pieces, sealing edges with toothpicks, and place in 11 X 7 X 1½" pan, sealed side down. Bake in hot oven (400°) 15 minutes.
Combine remaining ingredients in 2-qt. saucepan and bring to a full boil. Pour over apple pinwheels. Return to oven and bake 15 to 20 minutes more, basting twice, until apples are tender.