Wash ginger to get soil and any dirt off.
Using a knife, carefully scrape off the peels off and chop the ginger into small pieces.
Process the ginger in a blender until fine. During the blending process, you will need to add a bit of water to make blending easier.
On a tray lined with baking paper, cling film or a clean polythene bag, spread the blended ginger on the tray and place in the freezer for about 5 minutes or until the paste is slightly set.
Using a knife, make markings on the ginger that resemble small squares and then place the tray back into the freezer.
Once the ginger is frozen, break off the squares and place them into a ziploc bag or a container with a plastic lid for later use.
Alternatively, use an ice cube mold and pour the blended ginger into it. Remove from the mold once frozen and store as above.