Whisk together flour, baking soda, and salt. Place in a 1-quart jar. Top with brown sugar.
In a separate bowl, mix together granulated sugar, ginger, cinnamon, nutmeg, and vanilla bean powder. Add the sugar mixture to the jar and top with white chocolate chips. Seal, and attach a label with the following instructions:
To make the cookies:
Preheat the oven to 325. Mix butter and molasses in the bowl of a stand mixer until smooth. Beat in the egg. Add the contents of the jar and mix until incorporated. Roll into 1-inch balls, roll the balls in sugar, an placed them on a parchment or Silpat lined baking sheet. Bake for 8 to 10 minutes, or until the tops are cracked and the edges have started to brown. Cool slightly on the baking sheet before transferring to a wire rack.