In a clean bowl mix flour cocoa powder, baking powder and baking soda. In a separate bowl Mix sugar and oil add eggs mix well add flavor.

Add milk and mix well, alternatively be adding flour mixture and hot coffee while mixing till everything is incorporated. Pour in grease pan or line with baking sheet and bake in preheated oven for 20-25 minutes. Allow to cool.

Add cocoa powder to a large bowl of stand mixer, whisk through to remove any lumps. Cream together butter and cocoa powder until well combined, add sugar and milk to cocoa mixture by adding 1 cup sugar 1 tbsp milk. After adding turn mixer to high speed for about a minute until sugar and milk have been added then add vanilla flavor and combine well.