Jammy dodger biscuits recipe | Good Food

To make the biscuits, beat the butter, sugar and vanilla together in a large bowl using an electric whisk until pale and fluffy. Beat in the egg yolk, followed by the flours and a pinch of salt. If the dough is too stiff, you can mix in the milk, ½ tbsp at a time. Use your hands to bring the dough together into a disc, then wrap in baking parchment and chill for 30 mins to firm up.