PREPARATION: Preheat oven to 350 degrees Fahrenheit. Place rack at center. Grease and flour 2- 8 1/2” x 4 ½” x 2 ½” baking pans.
MIX THE DRY INGREDIENTS: In a large bowl, stir together the dry ingredients: flours, salt, baking soda, baking powder, and spices. Set aside.
MIX THE WET INGREDIENTS: In a large bowl or 8 cup measuring cup, whisk together the eggs, oil, sugar, zucchini, and vanilla.
STIR THEM TOGETHER AND SPOON INTO PREPARED PANS: Pour the wet ingredients (eggs, etc.) into the dry ingredients (flours, etc.) and stir until just combined. Divide the batter evenly between the two greased and floured pans.
BAKE and then COOL 5 MINUTES IN PANS: Bake for 50-55 minutes OR until loaves are golden brown and a skewer inserted into the center of each loaf comes out clean, rotating pans halfway through baking time. Begin checking for doneness at 45 minutes. Remove loaves from oven and cool in pans for 5-10 minutes. Turn out onto racks to cool completely before cutting—ideally after several hours. This bread is even better wrapped after cooling and stored overnight. It should keep for a few days like that, though if it’s terribly warm and humid, do stick it in the fridge after a day or so where it will keep for a week.
Freezing: Wrap well in plastic wrap and then in foil before freezing for up to 3 months. Let thaw in wrapping completely before slicing.