In a large bowl, whisk together the oil, granulated white sugar, brown sugar, an egg, an egg yolk, and vanilla extract, until completely smooth
1/2 cup vegetable oil, 1/3 cup brown sugar, 3/4 cup granulated sugar, 1 large egg, 1 egg yolk, 1 tablespoonj vanilla extract
Stir in the grated zucchini until evenly distributed.
1 & 1/3 cup grated zucchini with skin on
Add the dry ingredients to the wet ingredients, mixing just until combined. Do not over-mix. Fold in the chopped walnuts or pecans if using.
1/2 cup chopped walnuts or pecans or chocolate chips
Pour the batter into the prepared loaf pan and smooth the top with a spatula. Bake for 50-60 minutes, or until a toothpick inserted into the center comes out clean. If the top starts to brown too quickly, cover it loosely with aluminum foil during the last 10-15 minutes of baking.
Remove the bread from the oven and let it cool in the pan for 10 minutes. Transfer the bread to a wire rack to cool completely before slicing. Enjoy!