Preheat oven to 375 degrees.
Whisk together flour, cocoa, baking soda and salt. Set aside.
Cream sugars and butter together until light and fluffy.
Add in egg, vanilla and water and beat until well blended.
Gradually stir in dry ingredients.
Fold in mini chocolate chips.
Line cookie sheet with parchment paper or lightly grease.
Spoon rounded teaspoons of cookie dough onto prepared cookie sheet and flatten slightly with your finger tips.
Bake for 5-7 minutes or until they are set. Do not over bake.
Remove from oven and let cool on a rack.