Add all of the mince pie filling ingredients to a saucepan, and stir together over medium heat. Cover with a lid and cook for 25-30 minutes, stirring occasionally, until all of the liquid has been absorbed and the mix is thick and sticky.
Place the mince pie filling into a jar to cool, then place in the fridge until you are ready to use it (we find this stores well in the fridge for up to 2 weeks).
Preheat the oven to 180c/350f.
Place your sheets of pastry on the bench to defrost for 5-10 minutes (you can make your own pastry but we take a shortcut here).
Use a glass or cookie cutter to cut out circles a little larger than the base of a muffin or pie tin, then gently place each base into the muffin tin, pressing to remove any lumps. We find this makes enough for 12 large and 24 mini (or an extra 6 large) pies.
Place around 1-2 tsps of the filling onto the base, gently pressing to flatten with a spoon.
Top with some pastry stars, brush with a little soy milk, then bake for 28-30 minutes until golden.
Remove from the oven and allow to cool in the tin for 5 minutes before gently removing with a knife or spoon, then place on a cooling rack to cool fully - add an optional sprinkle of icing sugar before serving for older toddlers if you like.