To make this soap, you will first need to remove the soap base from the container and cut it into pieces.
Place the pieces of soap base in a microwaveable safe jug. Heat on high in 30 second intervals, stirring in between, until fully melted.
Add the ground ginger, cinnamon and vanilla and whisk to blend.
Place the mould on a flat surface where the bars will be able to sit, undisturbed, for a few hours. Pour the mixture into the mould, filling each cavity until they are around ¾ full.
When the soap is set, remove from mould and store or package for gifts.