Instructions

1. Grease a 20cm flat rectangle cake tin (you can you a flan tin if you do not have a rectangle tin) Preheat the oven to 150°C/300°F/gas mark 2.
2. Sift the flour, salt and caster sugar together into a mixing bowl. Rub the butter using your finger tips until the mixture turns into a breadcrumb consistency. Then work the mixture to become a soft dough. Lightly press the dough into the greased tin.
3. Mark the dough into 8 rectangle portions ‘fingers’. Prick all over with a skewer and bake in the preheated oven for 45-50 minutes until firm and golden
4. Leave to cool and scatter with caster sugar. Cut into the marked portions. If not eaten that day store in an air-tight container.