01 -
Preheat the oven to 350 F. Grease a 9x5-inch loaf pan and line it with parchment paper if desired.
02 -
In a medium bowl, whisk together the flour, baking powder, baking soda, and salt until evenly combined.
03 -
In a large bowl, whisk the eggs, oil, sugar, buttermilk, vanilla, lemon zest, and lemon juice until smooth.
04 -
Stir the grated zucchini into the wet mixture. If the zucchini is dripping wet, blot it lightly first, but do not squeeze it dry.
05 -
Add the dry ingredients to the wet ingredients and fold gently until no dry flour remains. Do not beat the batter.
06 -
Spread the batter in the prepared pan. Bake for 50-58 minutes, until a toothpick inserted in the center comes out clean or with a few moist crumbs.
07 -
Cool the loaf in the pan for 10 minutes, then transfer it to a wire rack. Let it cool completely before glazing.
08 -
Whisk the powdered sugar, lemon juice, and lemon zest until smooth. Drizzle over the cooled loaf and let the glaze set before slicing.