Mix the Sugar and water and dissolve in a saucepan over low heat.
Stir in the carrots, then bring to a boil. Boil for about 30 minutes or until mixture is very thick.
Remove from the heat, then stir in the ginger, walnuts and lemon juice.
Pour into a greased square pan and allow to cool before cutting it into squares.When completely cool, remove from the pan.