In a large bowl, whisk the oil, eggs, brown sugar, salt, ginger, and vanilla very well until completely combined. Grate about half the zest off of the orange and directly into the bowl of the whisked mixture. Add the baking powder and gluten-free flour and mix until well combined. Fold in the dried cranberries and white chocolate chips. Transfer the batter to the prepared pan and bake for 18-22 minutes or until a toothpick comes out clean or ideally, with moist crumbs attached. Remove from the oven and let it cool completely at room temperature.