3 to 4 cups grated fresh zucchini (310g to 425g)
3/4 cup (170g) unsalted butter, melted, plus more for greasing the pans
3 cups (390g) all purpose flour
1 teaspoon baking soda
1 teaspoon baking powder
2 teaspoons cinnamon
1/2 teaspoon ground ginger
1/4 teaspoon ground nutmeg
1 1/3 cup (270g) sugar
2 large eggs, beaten
2 teaspoons vanilla extract
1/4 teaspoon salt (omit if using salted butter)
1 cup (100g) chopped pecans or walnuts, optional
1 cup (120g) dried cranberries or raisins, optional