01 -
Heat the oven to 350 F and line two baking sheets with parchment. Shred the zucchini, then press it lightly in a clean towel until damp but not dripping.
02 -
In a medium bowl, whisk together the flour, oats, cinnamon, nutmeg, baking soda, and salt.
03 -
In a large bowl, beat the softened butter, brown sugar, and granulated sugar until creamy, about 2 minutes. Beat in the egg and vanilla.
04 -
Add the dry ingredients to the butter mixture and stir just until combined. Fold in the shredded zucchini until evenly mixed.
05 -
Scoop rounded tablespoons of dough 2 inches apart on the prepared pans. Bake for 10-12 minutes, until the edges are set and the tops spring back gently.
06 -
Cool on the pan for 5 minutes, then move to a rack. Whisk powdered sugar, milk, and vanilla into a thin glaze, then drizzle over fully cooled cookies.