Set oven to 350 degrees F.
Set oven to second-lowest rack.
Grease three 9-inch round cake pans, then line the bottoms with parchment paper.
In a heat proof medium mixing bowl mix together the boiling water with cocoa powder and coffee granules until completely combined; allow to cool for about 20 minutes or until room temperature.
In another bowl sift the flour with baking soda, baking powder and salt; set aside.
In a large bowl cream butter with both sugars and vanilla until fluffy.
Add in eggs and beat for about 3-4 minutes.
Add in the flour mixture alternately with the cocoa mixture until combined.
Divide the mixture evenly beweeen the cake pans.
Bake for about 25-35 minutes or until cakes test done.