This film from Woman's Weekly shows you how to line a round cake tin. First you take non stick baking parchment. Fold the paper to double thickness, then rest the tin on top and draw around it with a pencil. After that, then cut just inside the pencil line to compensate for the thickness of the tin. For the sides, you roll the tin on its edge, allowing some extra for overlap and a little extra height above the tin. Make a fold a couple of centimeters from the top and then make some cuts from the edge to just below the fold, all the way along. Press the paper into the base to create your finished lined tin.