Preheat oven to 375 degrees F. Line two cookie sheets with parchment paper.
In a small bowl, whisk together flour, baking soda, and salt; set aside.
In the bowl of a stand mixer fitted with the paddle attachment, cream butter and sugars until light and creamy. Beat in egg and vanilla until smooth. Gradually add flour mixture until combined. Stir in orange zest and white chocolate chips.
Drop by rounded tablespoons onto parchment lined cookie sheets. Bake 8 to 10 minutes or until golden brown around edges. Cool for 3 minutes on cookie sheet before transferring to rack to cool completely. Store in airtight container.