There is a little on-the-hob prep to be done here, but it really helps to bring out the flavours before it all goes into the slow cooker. Preheat the slow cooker to high. Meanwhile, heat the oil ...

Stir in the cinnamon. Set aside to cool. For the overnight oats, put all the ingredients in a jar, stir, put the lid on and store in the fridge overnight. If you prefer your oats warmed ...