01 -
Preheat the oven to 400°F and line a baking sheet with parchment paper.
02 -
In a large bowl, mix grated zucchini, all-purpose flour, whole wheat flour, baking powder, baking soda, salt, sugar, and lemon zest until evenly distributed.
03 -
Add the cold cubed butter to the dry mixture and cut it in using a pastry cutter or fingers until the texture resembles coarse crumbs.
04 -
Whisk buttermilk, egg, and vanilla extract in a separate bowl until well combined.
05 -
Fold wet ingredients into the dry mixture gently until just combined, avoiding over-mixing.
06 -
Turn dough onto a floured surface, knead lightly to form a 1-inch thick circle, then cut into wedges or circles and place on the prepared baking sheet.
07 -
Bake for 15-18 minutes until golden brown and a toothpick inserted comes out clean.
08 -
Allow scones to cool slightly before drizzling with lemon glaze.