1.   Carefully invert the tart onto a baking sheet and remove the bowl.

2.   I had to invert the tart onto a plate so that the golden-browned surface, with its carefully arranged layers of potato, would be on top.

3.   Invert cooled tart on a plate and remove rim and pan bottom.

4.   To unmold, invert a plate on the tart and invert the tart onto it.