Oven 180 C/ 350 F
Sift the flour, bi carb, baking powder, cinnamon and salt into a bowl.
In another bowl combine beaten eggs, oil, pineapple, carrot and sugar
Mix both together and add walnuts.
Pour into tin and back for 60- 90 min, This is a dense cake that cooks long and slow. After 1 hour test regularly with a skewer
Icing: Beat the butter and cream cheese with vanilla till creamed and light. Add sifted icing sugar and beat till white and fluffy. Add the sieved icing sugar and beat till fluffy and light.