An old favorite revisited.
Preheat oven to 375°F (190°C). Prepare two bread pans or 4 mini bread pans or a muffin pan with cooking spray. Combine milk with vinegar and set aside. Mix dry ingredients in a bowl, combining flour, cinnamon, nutmeg, baking soda, baking powder and salt. In another bowl, mix oil, milk mixture, vanilla, and sugars. Add in zucchini and pineapple. Then combine wet ingredients with dry ingredients but do not over mix. Stir in nuts and currants. Divide into pans and bake for 30-40 minutes. Check with toothpick, inserted in the center, making sure it comes out clean. Do not over bake. Move to cooling rack for 10 minutes and then remove from pan to let cool. You could add a Glaze.
Currants are produced from a small variety of grapes; these dried fruits resemble tiny raisins but have a stronger, tarter flavor. Raisins are easily a substitute for currants.