01 -
Set oven to 325°F (163°C) and allow to preheat thoroughly.
02 -
Peel a medium zucchini and shred it with the large holes of a box grater. Do not squeeze the shredded zucchini.
03 -
In a large mixing bowl, whisk eggs, granulated sugar, sourdough discard, shredded zucchini, oil, and vanilla extract until smooth.
04 -
Add flour, baking soda, salt, and cinnamon into the bowl. Stir gently until just incorporated. Take care not to overmix.
05 -
Pour the batter into a greased or parchment-lined standard loaf pan. Smooth the surface with a spatula.
06 -
Position the pan in the center of the oven and bake for 60 minutes, or until a toothpick inserted into the center comes out clean.
07 -
Let the loaf cool in the pan for 10 minutes, then transfer to a wire rack and allow to cool completely before slicing.