The custard cream - like many other biscuits - was a product of the industrial revolution. She explained her theory: “Custard powder was made by a chemist, Alfred Bird, whose wife was allergic ...
Dust a clean work surface with flour and roll out the dough to the thickness of 7.5mm/⅓in. Use a 6.5cm/2½in round cutter to cut out biscuits. Collect the off-cuts, roll again and cut out more ...