Wash the apples and orange and roughly chop into segments.
Place them into your Crock Pot along with the cinnamon sticks, nutmeg, cloves and mixed spice. Pour over the water and leave to cook on high for around 6 hours or low for around 8 hours.
Use a ladle to spoon the mixture into a sieve placed over a bowl. Use the back of the ladle to squish the apple and orange slices, getting all the flavours out and into the bowl below.
Pour the sieved apple cider into two large bottles and store in the fridge for up to one week. Heat in the microwave or in a saucepan on the stove before serving.