Sometimes known as Bakewell Pudding, this is traditionally baked in a deep oval dish with sloping sides. A loose-bottomed tart tin can also be used, in which case the shorter cooking time should be used.
Line a 20cm (8inch) tart tin with the pastry, and spread it with a generous layer of jam. Whisk the sugar and eggs until thick and pale. Stir in the melted butter, then fold in the groun