Preheat the oven to375°F.
In the bowl of an electric mixer, add butter, sugar, and brown sugar. Beat until creamy
Add the egg, vanilla, and zucchini to the bowl, beating after each. Scrape down the sides of the bowl at least once.
Add the flour, baking soda, and salt. Mix until almost combined. Add the white chocolate chips and mix until incorporated.
Line a sheet pan with parchment paper. Scoop cookie dough from bowl with an ice cream scooper for equal portions on the prepared sheet pan.
Bake for 9-11 minutes until the edges are golden and top is set.
Let cool on the sheet pan for 5 minutes, then transfer to a wire rack to cool completely.