This recipe just came to me one night. The coffee adds so much flavor! Coffee and chocolate go together very well! If you are not a coffee fan, don't be afraid to try. However, if you still do not want to try then simply do not add.
Cream butter with the brown sugar and sugar in a large mixing bowl. Add 1 egg and beat, add last egg and beat. Add vanilla and stir until incorporated.
Dissolve coffee in the water by stirring in a small bowl. Add this mixture to the large bowl.
Add 1 cup flour, 1/4 cup cocoa powder, and 1 teaspoon baking soda. Stir by hand with wooden spoon until well mixed. Add enough remaining flour until a thick dough is formed.
Grease baking sheets. Drop dough onto sheets by rounded teaspoon. Bake until crackers in the center of the cookie form, and edges turn light brown. About 10-12 minutes. Remove from oven and let sit about 2 minutes, transfer to wire rack to cool completely.