Serves: 20 cookiesTo make the date-orange filling:
To make the biscuits:
1) Preheat the oven to 160°C / gas mark 3. Put the flour, baking powder, 10g icing sugar and salt in the bowl of a food processor and pulse three to four times to mix. Add the butter, oil and milk, pulsing until the dough just comes together. Take care not to overwork the dough; it will be slightly wet.
2) Remove the dough from the processor and roll into 20 equal size balls. In the palm of your hand, press and pat each ball of dough into a 7cm round. Place a rounded teaspoon of filling in the centre of each round and draw the edges up and around the filling. Pinch the dough together to make a sealed ball, and then carefully roll between your palms to make a smooth round ball.
3) Press gently to flatten the biscuit slightly, then place seamed side down on a parchment-lined baking sheet. Repeat with the remaining dough and filling. Gently prick the cookies with a fork or a wooden skewer in a decorative pattern, taking care not to pierce the dough to the filling.
4) Bake the cookies until firm and slightly puffed, and the tops are pale but the bottoms are just beginning to turn slightly golden, about 25 to 30 mins. Dust generously with icing sugar, cool and dust again.
For the apricot-golden sultana-nut filling:
Puree ingredients in a food processor until evenly combined.
For the quince-walnut filling:
Puree the ingredients in a food processor until evenly combined.