Add nuts, if using, and stir in until just combined.
1 cup chopped pecans
Divide batter between prepared loaf pans.
Bake for 40-60 minutes, or until a wooden toothpick inserted into the center comes out clean.4
Cool in pans for 10 minutes.
Run a thin knife around the edges, and remove zucchini bread out onto wire cooling racks to finish cooling.
Video
Notes
Butter: The butter should be just melted but not hot. It takes about 35 or so seconds for me to melt it in the microwave.
Flour: To properly measure the flour, sift or stir the flour. Then, lightly spoon into the measuring cup and level. Avoid packing in the flour as it will give you a dry, heavy loaf.
Squeezing the zucchini: No need to squeeze or wring any moisture from the zucchini. Simply place it in the colander, and let it sit. This will help to make the bread moist.
Baking: I loosely tent the bread with foil during the last 10 or so minutes to prevent the top from over-browning.