Lightly score a rough border it, approximately 1.5cm/¾in from the edge, and prick the middle with a fork. When the beetroot has had about half its cooking time, place the pastry in the oven for 8 ...

Place on the other lined baking tray and twist the edges of the pastry to make an informal border and crimp ... Arrange the beetroot in a neat overlapping spiral so it covers the base.