Grate unpeeled zucchini
Beat eggs a lot
Gradually beat in oil and then sugar
Add grated zucchini
Stir together dry ingredients, then add to wet ingredients. Stir gently until just combined.
Bake at 350° for 1 hour
Test with toothpick.
If not yet done cover with aluminum foil to prevent from burning
Test with toothpick again after ~10-20 minutes
Cool 20 minutes, cut, eat
Zucchini can be substituted with apples, pumpkin, etc...