Preheat the oven to 350. Apply a thin layer of oil to the bottom of a square pan.
Whisk the flour, sugar and baking powder into a bowl and set it to one side.
In another bowl mix the cocoa, cinnamon and Amazing Grass. Add boiling water and / or hot coffee and beat vigorously to resolve any lumps in the cocoa. Add vegan mayo and vanilla and beat until smooth.
Combine the wet chocolate mixture with the flour mixture and pour into the pan. Bake until a toothpick you can and stabbing it back clean. This takes about 30 to 40 minutes.