Step 1: Pre-heat the oven to 350 degrees. Grease and flour a Bundt cake pan.
Step 2: In a bowl sift together flour, cinnamon, salt, baking powder, and baking soda.
Step 3: In a large bowl beat eggs and sugar until the mixture becomes light colored. Mix in oil. Add sifted flour mixture to the egg mixture. Beat for 2 minutes. Stir in pineapple, walnuts, vanilla extract and grated zucchini. Mix well and pour into the prepared cake pan.
Step 4: Bake for 1 hour and 10 minutes or until a toothpick inserted into the center comes out clean. Remove from the oven and allow the cake to cool for a half hour.
Step 5: To make the glaze- In a bowl combine confectioners’ sugar and milk. Mix well. Remove cake from cake pan and allow to fully cool. When cake is cooled pour glaze over the top.