Lightly grease a 9X13 baking dish.
Preheat oven to 350°.
Separate rolls.
Starting at larger end of roll, place ½ potato patties near end.
Roll up as usual.
Be sure to place large end up in dish.
This forms the top of the dumpling.
Continue until all dumplings are made.
Place sugar, water, butter and cornstarch in medium saucepan.
Bring to a boil.
Add vanilla and cinnamon.
Pour hot mixture over dumplings.
Bake 35-40 minutes until lightly browned.