1 Preheat oven to 180C. Greaseor line the cake tin.
2 Put the sultanas in a small saucepan with the tea. Cover with water, bring to a boil then simmer for 10 minutes. Drain, then beat in the butter.
3 Beat the sugar and eggs until well combined then add the sultana mixture. Fold in the flour and ginger then spoon into the tin and bake for approximately 1 hour or until an inserted skewer comes out clean.
4 Make the icing by putting the icing sugar, vanilla, ginger and butter in a bowl. Mix then slowly pour in enough boiling water to be able to mix the icing to a spreadable consistency.