Preheat Oven: Set your oven to 356ºF (180ºC) fan-forced. Grease two 12-hole patty cake pans with butter. If you only have the one pan, bake the pies in batches.
Blend Dry Ingredients: In a food processor, pulse flour and powdered sugar.
Add Butter: Add chilled, cubed butter to the flour mixture. Pulse for 15 seconds until the mixture resembles coarse crumbs.
Add Egg Yolk: Add the egg yolk through the feed shoot and pulse until combined.
Add Water: Gradually drizzle in chilled water while pulsing, until the dough begins to form into a ball. Add more water if necessary.
Knead and Divide Dough: Turn dough onto a floured surface. Knead lightly and divide into two halves. Flatten each into a disc.
Roll and Cut Bases: Roll out one dough half to 4-5mm thickness. Cut out 24 bases using a 7cm cookie cutter or a cutter that is the same size or slightly bigger than the folds in your pan. Press the bases into the greased pan.
Prepare Filling (Optional): Mix the brandy into the fruit mince if using, just directly into the jar! I like to mix it through with a long handle teaspoon.
Fill Bases: Add 1/2 tablespoon of the fruit mince to each base.
Roll and Cut Tops: Roll out the second dough half and using a small star shape cookie cutter, cut out 24 stars for the tops. Place these over the filling.
Chill Pies: Chill pies in the refrigerator for 15 minutes.
Brush: Brush tops with milk.
Bake: Place in the oven and bake for 15-20 minutes until lightly golden. Cool in the pan for 5 minutes, then transfer to a wire rack.
Finish: Dust with powdered sugar and enjoy warm or cool!