Per serving
Bake simple biscuits using a little acorn flour to add a hint of nuttiness and a slightly more robust texture – ideal for dunking in your tea
Rub the butter into the flours using your fingers until the mixture resembles breadcrumbs, then stir in the sugar, the egg and yolk, vanilla, mixed spice or cinnamon and bring together to form a dough. Roll out on a lightly floured surface and stamp out 6cm round biscuits (or any shape you like). Re-roll the trimmings and repeat. Arrange on parchment-lined trays and chill for 30 mins.
Heat oven to 200C/180C fan/gas 6. Bake the biscuits for 10 mins, then leave to cool. Decorate with icing, or dip one side in chocolate and leave to set.
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