Peel and core the apple then dice. Peel and dice the sweet potato.
Place the apple and sweet potato in a steamer and cook for 10-15 minutes until soft.
Add the apple and sweet potato to a bowl and mash with a fork to remove any lumps.
Add the flour and mix to form a dough (using hands).
Roll out the dough to approx 1/2 a cm in thickness.
Use cookie cutters or a knife and cut out the biscuits. Remove any excess dough, and roll that out, repeating until there is no dough left (this will make around 45 biscuits).
Cook in a preheated oven on 180c for 12-15mins till cooked.
Allow to cool before serving.
Notes
Store in a container on the bench for 3 days, in the fridge for a week, or freeze for up to 2 months.