Preheat the oven to 350 degrees F., rack in the middle position.
Prepare your cookie sheets by using a nonstick silicone baking mat or by spraying them with Pam (or another nonstick cooking spray.) You can also use a parchment-lined cookie sheet if you prefer.
In a large mixing bowl, combine the flour, salt and baking soda. Stir well and set aside.
In another bowl, beat the softened butter, white sugar, and brown sugar.
Add the beaten egg to the bowl with the butter and the sugars. Stir it all up.
Then stir in the grated orange zest.
Stir in the flour, salt and baking soda mixture and mix well.
Stir in the white chocolate chips.
Drop by teaspoonfuls on a prepared cookie sheet, 12 cookies to a standard size sheet. Flatten the cookies in a crisscross pattern with a fork, the way you'd do for peanut butter cookies.
Bake the cookies at 350 degrees F. for 10 to 12 minutes. (Mine took 11 minutes.)
Leave the cookies on the cookie sheet for a minute or two, and then remove them to a wire rack to cool completely.
Yield: 5 to 6 dozen cookies, depending on cookie size.
Hannah's Note: Delores thinks these cookies taste just like the drinks from the Orange Julius stand at the mall.