In a large bowl, mix the dry ingredients (flour, cocoa powder, baking soda, salt).
In a stand mixer or hand electric mixer, beat butter and both sugars until well blended. Add the egg, 2 teaspoons of water, vanilla, and instant coffee granules.
Once the wet ingredients are well blended, add in the flour mixture. Beat for just a minute, until dry ingredients are just incorporated, and then add the semi-sweet chocolate chips and the white chocolate chips.
Using about one tablespoon of dough per cookie, drop dough onto two baking sheets lined with parchment paper or Silpats.
Bake at 325 degrees for 9-11 minutes (mine were done right at 10 minutes).
Cool on a cooling rack.
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